Gary started the french horn in high school and his professional career has been extremely busy now for more than 50 years.
As seen in this long list, his career has included a vast variety of styles, venues and Canadian musical institutions. And it continues to this day.

FULL-TIME ORCHESTRA

National Ballet of Canada Orchestra 1977-present (principal horn 1978-2016)
Esprit Orchestra 1988-present (principal horn 1988-2016)
Canadian Opera Co. Orchestra* (2nd horn) 2001-present

FREE-LANCE ORCHESTRAL

Toronto Symphony Orchestra*
National Arts Centre Orchestra
Edmonton Symphony*
Kitchener-Waterloo Symphony*
Hamilton Philharmonic
Symphony Nova Scotia
Winnipeg Symphony Orchestra
Toronto Philharmonic*
Niagara Symphony*
Brantford Symphony*
Peterborough Symphony
Symphonia Toronto
Toronto Mendelssohn Choir Orchestra
Ontario Place Pops Orchestra
Canada Pops Orchestra
Guelph Festival Orchestra
Brott Festival Orchestra*

* Positions include occasional Principal Horn

FREE-LANCE OPERA & BALLET

Ukrainian Ballet
Opera Hamilton
Peggy Baker Dance Projects
Royal Winnipeg Ballet*
Le Grande Ballet Canadienne*
Stuttgart Ballet
Cuban National Ballet
Bolshoi Ballet
Royal Ballet
Kiev Ballet*

FREE-LANCE CHAMBER ENSEMBLES

Festival of the Sound
Hamilton Philharmonic Horn Quartet
James McDonald Horn Quartet
Toronto Chamber Players*
Amadeus Ensemble
Toronto Chamber Winds
New Music Concerts
Chamber Music Canada*

MUSICALS: ORIGINAL TORONTO PRODUCTIONS

Cats
Les Misérables
Phantom Of The Opera
Miss Saigon
Show Boat
Tommy
Beauty & The Beast
The Lion King
Crazy For You
The Producers
Sunset Blvd.
Napoleon
Joseph & The Amazing Technicolor Dreamcoat (Donny Osmond)
Kiss Of The Spider Woman (Chita Rivera, Brent Carver)
Wizard Of Oz
Damn Yankees
Kismet
Frankenstein (Michael Burgess)
Man Of La Mancha (Michael Burgess)

MUSICALS: MAJOR TOURING PRODUCTIONS
West Side Story
The Music Of Andrew Lloyd Weber (Sarah Brightman)
Song & Dance (Melissa Manchester)
Evita
Camelot (Richard Harris)
The King & I (Rudolph Nureyev)
Sound Of Music (Debbie Boone)
Man Of La Mancha (Richard Kiley)
42nd Street
My One & Only (Tommy Tune, Lucie Arnez)
La Cage Aux Folles (Peter Marshall)
Baby
Guys & Dolls
Porgy & Bess
Oliver
Sugar Babies (Mickey Rooney)
7 Brides For 7 Brothers (Howard Keel, Jane Powell)
South Pacific
Can Can (Leslie Caron) 
Doyle Carte Co.
   · Iolanthe
   · H.M.S. Pinafore
   · The Pirates of Penzance
   · The Mikado 
Grand Hotel
The Secret Garden
Pajama Game
The Two Faces of Africa

ALBUMS: CLASSICAL
The Canadian Brass 
   · Legends 
Canadian Opera Company Orchestra 
   · Mozart arie & duetti - JUNO WINNER 
Esprit Orchestra (Alex Pauk, cond.)
   · The Esprit Orchestra
   · Iridescence
   · Music For Heaven & Earth
   · Tabuh-Tabuhan
   · Harry Somers, Celebration
Toronto Symphony Orchestra
   · Prokofiev Romeo & Juliet Suite (Jukka-Pekka Saraste, cond.)
National Ballet Of Canada Orchestra
   · The Contract (Ormsby Wilkins, cond.)
   · An Italian Straw Hat (Ormsby Wilkins, cond.)
Fanfare - The Stratford Music Of Louis Applebaum
Toronto Chamber Winds
   · Mozart Serenade for 12 Winds & Double Bass
Quartetto Gelato
   · Aria Fresca
Alexina Louie
   · Music For A Thousand Autumns
Orchestral Compositions By Kenneth G. Mills
   · Majestic Landscape
Janis Kalnins
· Violin Concerto (Laura Zarina, violin)

ALBUMS: JAZZ

Carol Welsman
   · Swing Ladies, Swing! 
Rob McConnell & The Boss Brass
   · Riffs I Have Known 
   · The Brass Is Back
   · Brassy & Sassy - GRAMMY WINNER 
   · Our 25th Year
   · Overtime
   · Even Canadians Get The Blues
   · Velvet & Brass (with Mel Tormé) - GRAMMY WINNER 
Holly Cole
   · Baby, It's Cold Outside

ALBUMS: SOUNDTRACKS

Being Julia
Last Night
Stepping Out (with Liza Minelli)
Riel
Thomas & The Magic Railroad

ALBUMS: ORIGINAL CAST RECORDINGS

Goya - A Life In Song (with Placido Domingo, Dionne Warwick)
Napoleon
Ragtime
Man Of La Mancha (with Michael Burgess)

ALBUMS: BANDS

The Hannaford Street Silver Band
   · Bring On The Brass
The Band Of The 7th Royal Canadian Artillery

ALBUMS: EDUCATIONAL

Jenson Publications
   · Music For Concert Band, Vol. VII & VIII
Strictly Sammy
   · music for symphonic & concert band by Sammy Nestico

ALBUMS: CHILDREN’S

Classical Kids
   · Mozart's Magnificent Voyage
Lenny Graf
   · A Forest Made Of Spinach

ALBUMS: POPULAR

Blue Rodeo
   Small Miracles - JUNO WINNER
1000 Arms
Karina Zorn 
    Through These Eyes 
Sultans of String 
   Symphony 
Frank Stallone arr. by Sammy Nestico
   In Love In Vain
John McDermott
   Stories Of Love
Colm Wilkinson
   Some Of My Best Friends Are Songs
Frank Mills
   Prelude To Romance
The Frank Mills Story
Eugene Amaro
Rebecca Timmins
Universal Honey
   Magic Basement
Michael Amante
Marc Jordan
   Make Believe Ballroom 
Canada Pops
   Did You Know
Joan Watson
   Songs My Mother Taught Me
Close Enough
   Seasonings

ALBUMS: CHRISTMAS
Joan Watson 
   · The Call of Christmas 
Alan Jackson
   · Let It Be Christmas
St Michael's Choir School
   · Christmas Garland
Eduard Klassen
   · Christmas Melodies
Close Enough
   · To Christmas Knight

ALBUMS: SOLITUDES (NATURE SOUNDS)
Garden in Provence 
Nature's Ballet
Legend Of The Wolf
Flowers In The Sky
Spirit Of Africa
Celtic Awakening
Guardians Of Atlantis
The Genius Of Mozart
Mozart, Forever By The Sea
Sunday Afternoon
Inspired By Monet
Woodland Harp
Woodland Strings
Grand Canyon
Brass-tastic
Vivaldi On The Terrace
Christmas Entertaining

ALBUMS:DEVOTIONAL
Ruth Fazal 
   · Fountain of Tears 
Eduard Klassen
   · Great Is Thy Faithfulness
The Covenant Choir Of Park Cities Presbyterian Church, Dallas, Texas
   · Come, Christians, Join to Sing 
   · Lift High The Cross
Close Enough
   · For Comfort

ALBUMS: ARRANGING
The Four Hornsmen of the Apocalypse
    Intuitions
True North Brass
True North Brass
Joan Watson
    Songs My Mother Taught Me
Hannaford Street Silver Band (Stephen Chenette, cond.)
Bring On the Brass

ALBUMS: PRODUCER & ARRANGER
Close Enough
   · For Comfort
   · To Christmas Knight
   · Seasonings

MOVIES 
Being Julia (Annette Bening)
A Christmas Story (Darren McGavin, Melinda Dillon) 
Without A Clue (Ben Kingsley, Michael Caine)
Stepping Out (Liza Minelli, Shelley Winters, Julie Walters)
January Man (Kevin Kline, Susan Sarandon, Mary Elizabeth Mastrantonio, Harvey Keitel, Rod Steiger)
Boy In Blue (Nicholas Cage)
Turk 182 (Timothy Hutton)
Thomas & The Magic Railroad (Alec Baldwin)
Varion's War (William Hurt)
The Confession (Ben Kingsley, Alec Baldwin)
Free Willy 3
Getting Away With Murder (Jack Lemmon, Dan Akroyd)
Pippi Longstocking (animated)
Kid For Rent (Leslie Neilson, Christopher Lloyd)
The Fall
It Runs In The Family
Tulips (Bernadette Peters, Gabe Caplan)
Gordie (the other talking pig)
Family Plan
Chain Of Command
Other People's Money (Danny Devito)
Resurrection
Beefcake
Tribulation Force (Left Behind 2)
Judgement
Rescue Heroes
The Kid (Bruce Willis) 
Navy Seals (Charlie Sheen)
Blackjack (Dolph Lundgren)
Pearls of the Far East
Gooby (Robbie Coltrane, Eugene Levy)
On the Basis of Sex (Felicity Jones)
The Lighthouse (Willem Dafoe, Robert Pattinson)

MOVIES: CANADIAN DIRECTORS
The Right Kind of Wrong dir. Jeremiah S. Chechik
The Whistleblower (Rachel Weisz, Vanessa Redgrave) dir. Larysa Kondracki 
Passchendaele  dir. Paul Gross 
Chloe (Liam Neeson, Julianne Moore, Amanda Seyfried) dir. Atom Egoyan 
Silk (Keira Knightley) dir. François Girard 
St. Ralph (Gordon Pinsent, Jennifer Tilly) dir. Michael McGowan 
Last Night  dir. Don McKellar
The Saddest Music In The World  dir. Guy Maddin
Child Star  dir. Don McKellar
Goon 2: Last of the Enforcers dir. Jay Baruchel

MOVIES: IMAX
Wonders of the Arctic
A Beautiful Planet (Jennifer Lawrence)
Hubble 3D (Leonardo DiCaprio)
Beavers (The Biggest Dam Movie You Ever Saw)
Cyber World 3D
Destiny In Space
Space Station
Gold Fever

TELEVISION: TV SERIES
SCTV (with 'Mr. Mambo'/John Candy) 
Instant Star 
Street Legal
Road To Avonlea
Little Bear
Danger Bay
Alfred Hitchcock (new)
Degrassi Kids
Robocop
Heart Of Courage
Home Fires
The Campbells
Not My Department
Looking For Miracles
The Winners
Twice In A LifeTime
Earth... Final Conflict

TELEVISION: TV THEMES
CTV Election Themes (2015)
Country Canada
TIFF (Toronto International Film Festival)
Hockey Night In Canada
CBC Newsworld
CBC Sportsweekend
Gzowski & Co.
CFL
Man Alive
CBC Mid-day
Witness
CBC Primetime
TSN
Canada AM
CFTO Olympics
'96 Olympics
Raptors TV Theme
CTV News
CBC Olympics

TELEVISION: TV MOVIES
Pirate's Passage: animated (Donald Sutherland, Carrie-Ann Moss, Colm Feore, Gordon Pinsent, Paul Gross)
The Climb
Shade of Black: The Conrad Black Story
Everest
Roxana
Buffalo Girls (Angelica Huston)
Andersonville
Kissinger & Nixon
Net Worth
Dan Jansen Story
Marie Curie
Airmen Of Tuskegee
Joan Of Arc (CBS)
Stephen King's Storm Of The Century (Colm Feore)
Dancing In The Dark
Lady Killers
Texas
Lonesome Dove Part 2 (Streets Of Laredo)
Edison
Blackout
Double Platinum (Diana Ross, Brandy)
The Little Riders
State Park
Atticus (James Coburn)
The Christmas Secret (Richard Thomas, Beau Bridges)
Peacekeepers
Counterforce
Stolen Miracle
Global Heresay
Ocean Ranger
Mary Kay
The Man Who Saved Christmas (Jason Alexander)
Billy Bishop (A Hero To Me)
The Halifax Explosion
Dieppe
Lusitania
Squalus
Volcano

TELEVISION: TV SPECIALS
Raising Valhalla: The Birth of an Opera House
The Face of Victory (History Television)
Burnt Toast (Paul Gross, Colm Fiore, Russell Braun, Isabel Bayrakdarian) 
Ancient Olympics: Let the Games Begin 
National Ballet of Canada
   · Onegin 
   · The Merry Widow 
   · Giselle 
   · Mad Shadows 
   · The Nutcracker 
   · La Fille Mal Gardee 
   · Alice 
   · La Ronde 
Wayne & Shuster
Desert Storm (anniversary special)
Nilus The Sandman (The Boy Who Dreamed Christmas)
Anne Murray Special
Muppets Special
Dick Clarke Special
NHL Hockey Awards
Maple Leaf Gardens (final Leafs game special)
Aboriginal Awards
Northern Portraits
Conspiracy Of Silence
Magic Of Canada
Heritage Moments

ENTERTAINERS

Bob Hope
The Carpenters
Andy Williams
Henry Mancini
Lena Horne
Anne Murray
Harry Connick Jr.
Bernadette Peters
Tony Bennett
Linda Ronstadt
Peter Allen
Burt Bacharach
Engelbert Humperdinck
Peggy Lee
Emilie-Claire Barlow
Liona Boyd
Veronica Tennant
Reveen The Impossibilist
Famous People Players
Mac Davis
Neil Sedaka
Franki Valli
Barbara Cook
Mellissa Manchester
Al Jarreau
Roberta Flack
Ray Charles
Chris de Burgh
Sheena Easton
Peabo Bryson
Roger Daltry
Diana Ross & The Supremes
3 Irish Tenors
Charlotte Church
Diana Krall
YES
Roger Abbott
Jann Arden
Dianna Reeves
Christopher Cross
”Weird Al” Yankovic

TV & RADIO COMMERCIALS: AUTOMOTIVE
Chevy Jeep SUV
Jeep Cherokee
Toyota
Ford
Nissan
Chrysler
Jeep Eagle
Geo
Volkswagen
Honda
Dodge Trucks
Chevy
Firestone
Monroe Shocks
Speedy Muffler
Esso
Shell
Texaco
Pontiac
Acura
TV & RADIO COMMERCIALS: FINANCIAL
Western Canada Lottery
Canadian Mint
American Express
National Citibank
Bank Of Montreal
Visa
CIBC
TD Bank
TD Waterhouse
Crown Trust
Crown Life
London Life
Insurance Bureau Of Canada
Sun Life
AGF
TV & RADIO COMMERCIALS: BREAKFAST
Fruit Loops
Honey Comb
Rice Krispies
Sugar Crisp
Apple Wheats
Harvest Medley
Harvest Crunch
Cheerios
Honey Nut Cheerios
Wheaties
TV & RADIO COMMERCIALS: BEER/SPIRITS
Rickard's Red
LCBO
Labatt's Lite
Labatt's Blue
Molson
OV
Brador
Dominion Ale
Amstel
Bud Lite
Coor's Lite
Mike's Hard Lemonade
TV & RADIO COMMERCIALS: FOOD
Ferrero Rocher
Miracle Whip
9 Lives
Old South
Aunt Jemima
Crispy Crunch
Hostess
Catelli
Stouffer's
Twizzlers
Robin Hood
Laura Secord
Egg Marketing Board
Coke
President's Choice
TenderFlake
Orville Redenbaker Popcorn
Minute Maid
Mr. Christie
Tetley Tea
"Cheese Please"
Uncle Ben's
Pepsi
Sprite
Kool-Aid
Teem
Dentyne
Maple Leaf
Country Harvest
Campbell's Soup
Coffee Crisp
Kraft
Schneider's
7-Up
Lay's
TV & RADIO COMMERCIALS: FAST FOOD
Wendy's
McDonald's
Red Lobster
Burger King
Obie's
Swiss Chalet
Hardee's
Tim Horton's
TV & RADIO COMMERCIALS: RETAIL
Sears
Canadian Tire
Shopper's Drug Mart
Eaton's
The Bay
Chapters Books
Ikea
Home Hardware
Black's Cameras
Toys R Us
TV & RADIO COMMERCIALS: TRAVEL
Air Canada
Eastern Airlines
Canadian Airlines
Wardair
CP Rail
CP Marine
Ramada
Holiday Inn
Newfoundland Tourism
Ontario Tourism
Marine Land
TTC
TV & RADIO COMMERCIALS: PRODUCTS
Mr. Clean 
3M
Kodak
Texmade
Cow Brand
Benson & Hedges
Nicorette
Roundup
Alcan
All
Beaumark
Seldane
Alberto
Sanyo
Halla
Duracell
Gillette
Panasonic
Majesta
Sunlight
Maalox
Listerine
Viagra
Reactine
TV & RADIO COMMERCIALS: COMMUNICATIONS
AOL
Roger's
Bell
Telecomm
Super Channel
Sprint
Cantel
AT&T
TSN
Nortel Comm.
Canada Post
FedEx
National Post
Purolator
CKEZ 97.3
TV & RADIO COMMERCIALS: MISC.
Alliance Atlantis
Entertainment One
Wintario
AGT
Noranda
Royal LePage
Remax
Royal Canadian Mint
Cineplex
Alliance/Atlantis
Direct Energy
IBM
Smithfield
CPPA

BANDS
411 Squadron Band
Canadian Legion Band
Royal Canadian Artillery Band
Hannaford Street Silver Band
Royal Regiment Of Canada Band
HMCS York Band
Governor General's Horse Guards Band
JAZZ BANDS
Dave Grusin at Humber College
Impact Jazz Band
Bob DeAngelis Champagne Big Band
The Mother Necessity Big Band
Boss Brass
Free Flight Big Band
Brigham Phillips Big Band

SPECIAL EVENTS
Mayor's Arts Awards (Toronto)
I Believe (Oratorio by Zane Zalis/Roy Thompson Hall)
Chrysler Convention
The Legend of Zelda: Symphony of Goddesses
Skydome Stadium Opening
'Aida' at Skydome
Billy Graham at Skydome
Ford Show Convention
McDonald's 25th Anniversary Convention
Disney On Ice
Napoleon (silent movie with orchestra)
Joan Of Arc (silent movie with orchestra)
Ghostbusters (Movie with Orchestra)
Amadeus Choir
Smithsonian Institute Exhibition
Princess Of The Stars (R Murray Schafer)
The Enchanted Forest (R Murray Schafer)
The 12th Glenn Gould Prize Gala Concert (Jessye Norman, Viggo Mortensen)
Kingdom Hearts Video Game Concert