I love this app. I am a trombone player, first off. Playing this iBone "makes sense." You have all 7 slide positions, and all partials up to high Bb. So playing it is like second nature. I did like in the video, fired up a song in iTunes, and had a blast playing along. This app actually helps me "see" patterns in the position/partials as I use different scales. Oh and it actually sounds great. I would like "in app" iTunes controls, and a volume slider to adjust the ibone volume to match my tunes. I recommend all trombone players get this. If youre not a trombonist, you may still enjoy this.