After college, Harry signed with Atlanta-based LOWERY MUSIC GROUP (headed by Bill Lowery) as a songwriter / recording artist (HARRY M and The MARVELS) and spent several years working alongside such outstanding talents as Jerry Reed, Ray Stevens, Joe South, Mac Davis, Freddy Weller, Tommy Roe, Billy Joe Royal, Emory Gordy, Jr. and The Tams.

He recorded as featured artist (vocalist and instrumental) for ABC-PARAMOUNT, REPRISE, CAPITOL, RCA, AVI  and RANWOOD RECORDS - having as producers, among others, Felton Jarvis (Atlanta/Nashville), Sonny Burke (New York), Al DeLory (Los Angeles) and Jerry Fuller (LA / Nashville).

Harry was a featured vocal/piano guest soloist with Albert Coleman and The (50-piece) ATLANTA POPS ORCHESTRA at two of the city's finest venues (1) Chastain Memorial Amphitheater (summer concert series) and (2) Fabulous FOX Theater (Christmas, 1987) performing his own original compositions.

Harry has done studio background work (vocal / keyboards) on many recordings for other artists (Bobbie Gentry Buck Owens, Al Martino, Billy Joe Royal, Johnny Mathis,  Glen Campbell, Doug Kershaw, Walter Brennan, Patti Page, Tennessee Ernie Ford, Guy and Ralna, John Schneider, Mason Williams, Stella Parton, The Ventures, etc.).

Has sung or played on many commercial jingles for radio and television, including DELTA AIRLINES, DODGE, McDONALD's, OLYMPIA BEER, BORDEN'S, SAFEWAY MARKETS, NAUGLES, ALBERTO VO5, BURGER KING, etc.

Harry has produced numerous recordings for other artists on such major labels as LIBERTY, ABC-PARAMOUNT, RANWOOD and AVI, as well as many smaller independents.

From 1982 to 1992, Harry was chief composer and music coordinator for SCOEY MITCHLLL ORGANIZATIONS, INC.  As such, he composed title and feature songs, as well as underscore for the following:  (1) an award-winning afternoon television special, "Just a Little More Love"  ; (2) a highly-rated move-of-the-week, "Gus Brown and Midnight Brewster" , two situation -comedy pilots; (3) "Handsome Harry's (also sang theme) and (4) "Me and Mrs. C" (on the weekly schedule for 19 weeks); (5) a two-hour medical drama pilot, "Miracle at Beekman's Place" ; (6) a one-hour musical / variety pilot, "A Whole Lotta Fun" , starring JOHN BYNER, SAMMY DAVIS, JR. and other featured guest artists; and (7) "13 East" ,  a situation comedy (on the weekly schedule for 16 episodes) - all for the NBC TELEVISION NETWORK.

Harry has played a large part in the introduction and development of (among others) three outstanding female vocalists, each now embarking on solo careers; CAROL CHASE, STEPHANIE REACH-PHILLIPS, and TERRY GREGORY.

He has done extensive voice-over / looping work on many projects for, among others, UNIVERSAL STUDIOS (Magnum P.I., McCloud, R.L. Stryker, etc.) and WALT DISNEY PRODUCTIONS, first for EPCOT CENTER and more recently as the voice of two of the featured bears ("Shaker" and "Zeke")  in DISNEYLAND / DISNEYWORLD'S popular Country Bear Jamboree.