Company fun.music IT GmbH created these great apps:
tonestro: Learn to play Music, Clarinet Lessons - tonestro, Saxophone Lessons - tonestro, Tuba Lessons - tonestro, Trombone Lessons - tonestro, Flute Lessons - tonestro, Euphonium Lessons - tonestro, Recorder Lessons - tonestro, French Horn Lessons - tonestro, Trumpet Lessons - tonestro, tonestro: Violin Lessons・Tuner, and others..
