Learn the 40 drum rudiments
Drum Rudiments Trainer shows every rudiment of the Percussive Arts Society's 40 on one practice pad. Two hands play it in 3D, from the side and from where you sit; a lane shows each stroke falling to the beat; and the notation follows along. Set any tempo from 10 to 240 bpm.
Watch mode is the picture alone. Play mode counts you in and listens through your microphone: each hit is scored against the beat, accents against your own taps, and flams by the space between the two notes. The microphone hears when and how hard, not which hand, so the sticking is on your honour.
All 40 PAS drum rudiments
Made by Micah Alex. Source on GitHub. Rudiment list: Percussive Arts Society.