Orzmic

Orzmic is a freeware rhythm game for iOS and Android.

Notes are presented in a relatively freeform matter: They come in from the edges of the screen and travel in a linear fashion towards either circles or judgement lines; the player must touch or hold (depending on the note type) the note when it reaches its respective judgement line or circle edge. The positions, sizes, angles, and even presences of judgement lines may change at any time, as can the positions and presences of circles.