The double bass, usually considered a member of the violinfamily, is tuned in fourths and has the sloping shoulders and flat back characteristic of the viols.
低音提琴通常被算作提琴类，定弦为第四级音，颈部倾斜和背平是低音提琴的特点。
3
Spano grew up in a musical family, composing and playing flute, violin and piano.