Listen to Mellow by the Cup online. Mellow by the Cup is an Instrumental language song and is sung by Bitter Sweet Jazz Band. Mellow by the Cup, from the album Relaxing Coffee Moods:おいしい一杯とジャズ - Mellow Sunday, was released in the year 2023. The duration of the song is 2:17. Download Instrumental songs online from JioSaavn.