小恋曲谱不出心声
[xiăo liàn qŭ pŭ bù chū xīn shēng]
This username conveys the sense that even though this person might try to express emotions like love ('小恋' - small love) through melody ('曲谱' - sheet music), he/she finds it difficult ('谱不出') to truly convey their true feelings ('心声' - inner voice).