鍵盤 けんばんハーモニカじゃなかったです
kembanhāmonikajanakattadesu

Noun
Desu Copula

The polite, past negative form of 鍵盤ハーモニカ

1. Wasn't a keyboard harmonica.; Wasn't the keyboard harmonica.

Past/Perfective
Negative
Polite
Casual Register