Stretch, Pitch and Fun! app for iPhone and iPad

You dream to play your favorite tracks? (From your iTunes library) Adapt your speed and your pitch!
Select only the part you want to play, the speed of playback (Stretch) and Pitch.
You can also record a song: you ask your music teacher to record the track you are learning.
Star: choose a song in the music library
Heart: list of favorite tracks
Arrow Heart: add to the list of favorite tracks with the current settings (height, speed, start and end of the portion of the song)
Gear: preferences for the tempo, the minimum and maximum limits for the speed of songs (x0,03 / x32)
Arrow Circle: list of recordings (made with micro imported from other applications or the iTunes sharing (computer), or the mix of songs played)
Mix pieces played: is varied live the pitch and speed of the song played.