He has also worked with several famous artists such as Aretha Franklin, Whitney Houston, Diana Ross, Kenny G, Natalie Cole and Earth, Wind & Fire.
[1][2][3] Glass started off his career in music during the late seventies as a staff writer for Philadelphia producer Thom Bell.
He later produced Johnny Gill and Stacy Lattisaw on their 1984 LP Perfect Combination and played on Teena Marie's 1984 album Starchild.
He later worked with Earth, Wind & Fire on their 1987 album Touch the World and Jennifer Holliday on her 1987 LP Get Close to My Love.
He also composed on Diana Ross' 1989 LP Workin' Overtime and Natalie Cole's 1989 album Good to Be Back.