『弦楽アンサンブルの為の5つの習作』より https://derwurmblumchenmappu.bandcamp.com/album/5-studies-for-strings1. Adagio2. Allegro3. Lento ,Passacaglia4. Allegro5. Andantemusic composed by MASAYOSHI MATSUNAGA in 2020
http://www.nicovideo.jp/watch/sm36934257