译文: 电子媒体钢琴. Instant Feedback â“ shows you whether you're playing the correct notes on melodies. EarMaster捆绑有花红PitchBoy调谐器. 管风琴乐谱.
译文: It's not just an effect like the many plug-in devices on the market. Since 1976, the EBow has been making music.