Listen to The Piano Roll | Slow Blues in A online. The Piano Roll | Slow Blues in A is an Unknown language song and is sung by Backing Tracks Blues. The Piano Roll | Slow Blues in A, from the album Guitar Backing Tracks | Blues,Shuffle,Minor Blues, Preactice & Fun, was released in the year 2021. The duration of the song is 8:37. Download Unknown songs online from JioSaavn.