Ⅶ７alt Ｂ7alt Ｃ7alt Ｃ♯7alt Ｄ♭7alt Ｄ7alt Ｄ♯7alt Ｅ♭7alt Ｅ7alt Ｆ7alt Ｆ♯7alt Ｇ♭7alt Ｇ7alt Ｇ♯7alt Ａ♭7alt Ａ7alt Ａ♯7alt Ｂ♭7al … “Ⅶ７alt” の続きを読む