Listen to Mellow Barista online. Mellow Barista is an Instrumental language song and is sung by Bitter Sweet Jazz Band. Mellow Barista, from the album Relaxing Coffee Moods:おいしい一杯とジャズ - The Cooler, was released in the year 2022. The duration of the song is 2:08. Download Instrumental songs online from JioSaavn.