曲子

这首曲子是大调。

Zhè shǒu qǔ zi shì dà diào.

This piece is in a major key.

这首曲子对我来说太难演奏了。

Zhè shǒu qǔ zi duì wǒ lái shuō tài nán yǎn zòu le.

This piece of music is way too difficult for me to play.