作詞 さくし作曲 さっきょくじゃなかったです
sakushisakkyokujanakattadesu

Noun
Desu Copula

The polite, past negative form of 作詞作曲

1. Didn't write the lyrics and compose the music.; Didn't both write the lyrics and compose.

Past/Perfective
Negative
Polite
Casual Register