倍大提琴
A brass instrument resembling a tuba but with a lower pitch; a bass or contrabass tuba. 低音大号一种与大号相似却音调较低的铜管乐器；低音或最低音大号
A brass instrument resembling a tuba but with a lower pitch;a bass or contrabass tuba. 低音大号一种与大号相似却音调较低的铜管乐器；低音或最低音大号
contrabass or double-bass clarinet. 最低音或者倍低音黑管。
The left-hand Techniques of Contrabass 低音提琴左手技术
An Interpretation of the Modern Notation Codes of Free Contrabass Accordion 自由低音手风琴现代记谱符号解析
bombardon:a brass instrument resembling a tuba but with a lower pitch; a bass or contrabass tuba. 低音大号:一种与大号相似却音调较低的铜管乐器;低音或最低音大号。
