4.トロンボーンは低い音が変になります おすすめは↓ 3.オルガン です！
参考 https://www.bing.com/videos/search?q=%e6%a1%9c%e5%92%b2%e3%81%91%e6%a5%bd%e8%ad%9c%e5%b7%a6%e6%89%8b&&view=detail∣=055BA151ED62D777D172055BA151ED62D777D172&&FORM=VRDGAR&ru=%2Fvideos%2Fsearch%3Fq%3D%25E6%25A1%259C%25E5%2592%25B2%25E3%2581%2591%25E6%25A5%25BD%25E8%25AD%259C%25E5%25B7%25A6%25E6%2589%258B%26qs%3Dn%26form%3DQBVDMH%26%3D%2525e%25E6%25A4%259C%25E7%25B4%25A2%25E5%25B1%25A5%25E6%25AD%25B4%25E3%2581%25AE%25E7%25AE%25A1%25E7%2590%2586%2525E%26sp%3D-1%26pq%3D%25E6%25A1%259C%25E5%2592%25B2%25E3%2581%2591%25E6%25A5%25BD%25E8%25AD%259C%25E5%25B7%25A6%25E6%2589%258B%26sc%3D0-7%26sk%3D%26cvid%3DD9CDB753F9BC459EAAC574DFE6CED476%26ghsh%3D0%26ghacc%3D0%26ghpl%3D
