Altered# — ASO

提供 Luca Rocchi AppTrack Ninja。

If you are a serious musician, you are supposed to answer "What is the 7b of D?" It's C, of course. But, were you fast enough? you know, if playing in a gig you are required to think fast... Try Altered#

カテゴリ: Music, Education

のキーワード可視性、ランクイン検索語、日次の順位変動。 Altered#.