15 games have a developer similar to 'Harmonix'
(PS2) Amplitude
(PS2) Frequency
(PS2) Guitar Hero
(PS2) Guitar Hero 2
(360) Guitar Hero 2
(PS2) Guitar Hero Encore: Rocks the 80s
(PS2) Karaoke Revolution
(PS2) Karaoke Revolution Party
(PS2) Karaoke Revolution Vol. 2
(PS2) Karaoke Revolution Vol. 3
(PS2) Rock Band
(360) Rock Band
(PS3) Rock Band
(WII) Rock Band
(360) Rock Band 2