Gaby Alter (pronounced Gah-bee) is a New York-based songwriter and composer and Jonathan Larson grant recipient. His music and songs have been featured on PBS and cable television, National Public Radio, and the SXSW Film Festival. His musical scores have won the 1998 San Francisco Theater Critics' Circle Award and the 2004 New York Fringe Festival Songwriting Award, and his song "Union Square" was nominated for a 2010 MAC award.

He is currently writing lyrics and music for the musical BAND GEEKS!, appearing at Goodspeed's Norma Terris Theater in May 2010. Other musicals include REALITY! with playwright Itamar Moses (Cape Cod Theater Project, 2008) and the pop-rock song cycle 29 with Tommy Newman (NYU Steinhardt, 2007). His work has been showcased at the National Alliance of Musical Theatre's (NAMT's) Festival of New Works, The Summer Play Festival (SPF), William Finn's Evening of New Composers at Barrington Stage, Joe's Pub, the New York Musical Theater Festival (NYMF), Ars Nova, Merkin Hall and on Sirius Radio.

Gaby writes songs for "Music Time With Mr. Steve" on PBS Kids, and composed the theme music for NPR's Backstory. He starred in and helped score the documentary Nerdcore Rising, which appeared at the 2008 South by Southwest Film Festival and is now available on Netflix instant watch. His hip hop tracks with rapper MC Frontalot have appeared in several video games and on G4 television. He is a member of the Dramatists' Guild and ASCAP, and an alum of NYU's Graduate Musical Theatre Writing Program.