(1)音楽の伴奏なしで
(2)without musical accompaniment; "they performed a cappella"
さらに詳しく
(1)適度に遅い速度で
(2)at a moderately slow tempo
(3)at a moderately slow tempo; "this passage must be played andante"
(1)適度に迅速な速度で
(2)in a moderately quick tempo; "play this more allegretto"