From 1988 to 1993 he worked with his brother, trumpeter Philip Harper, in the group The Harper Brothers, alongside musicians such as Justin Robinson, Javon Jackson, Walter Blanding, Kiyoshi Kitagawa, Stephen Scott, Kevin Hays, Michael Bowie, and Nedra Wheeler.
Stephen Harper | Harper's Bazaar | Harper's Magazine | Ben Harper | Harper's Weekly | Harper's | Harper Lee | Roy Harper | Harper's Island | Valerie Harper | Harper | Clifford Harper | Bruce Harper | Winard Harper | Bryce Harper | F. A. Harper | William Rainey Harper | William Harper | Terry Harper | Harper Perennial | Elijah Harper | Rod Harper | Robin Harper | Robert Harper | Nick Harper | Laureen Harper | James Harper | Hill Harper | Herbie Harper | Heather Harper |
Noah has been associated with artists such as Jeremy Pelt, Jon Irabagon, Duane Eubanks, Winard Harper, Willie Jones, III, Corcoran Holt, Jason Brown, McClenty Hunter, Steve Johns, Marcus McLaurin and Peter Brainin.