TrumpetTool 與 Transposition Helper 使用情況與統計

TrumpetTool what for? The Trumpet is a transposing instrument, written notes are read at a pitch different from sounding note. TrumpetTool allows you to match the pitch and fingering from Piano to Trumpet and from Trumpet to Piano. TrumpetTool is very simple to use and very useful. For more: www.shuva.fr TWITTER @trumpettool