(Thanks for compiling the list Malamane Chimi )
00ToD00 - 00ToD00's youtube - Youtube
The 4th Impulse -the 4th Impulse's youtube channel - Youtube
All Levels At Once - All Levels at Once - YouTube
Archie - Pony Archie - YouTube
AwkwardMarina - AwkwardMarina - Youtube
Blaze - Blaze~ O3O - YouTube
By Celestia's Beard - ByCelestiasBeard's channel - YouTube
Dimondium - Dimondium - Youtube
Eternal Glory - Eternal Glory - Youtube
Eurobeat Brony - Eurobeat Pony - Youtube
GaugeN - GaugeN Music~ - YouTube
General Mumble - General Mumble - Youtube
Kumquaticus - Kumquaticus - Youtube
TheMalenEst - MalenEst - Youtube
Mandopony - Mandopony - Youtube
MictheMicrophone - MictheMicrophone - Youtube
Mogul Dash - Mogul Dash - YouTube
Phony Brony - Phony Brony - Youtube
Psychedelic Brony - PsychedelicBrony - Youtube
QT-Mark - ExcelitrixOfficial - Youtube
Radiarc - Radiarc - YouTube
Rifftrack - Riff's Stuff - YouTube
Silva hound - Silva Hound - Youtube
Stablefree - Stablefree's Shed - YouTube
Stormwolf - Stormwolf - Youtube
Tarby Rocks - Tarby Rocks - Youtube
TeiThePony - Teithepony - Youtbe
ThatSonOfAMitch- ThatSonofaMitch - YouTube
UnderpΩny - UnderpΩny - Youtube
Wooden Toaster - WoodenToaster - Youtbe
MLP soundtrack -