Listen to Mellow Echoes and Frothy Cups online. Mellow Echoes and Frothy Cups is an Instrumental language song and is sung by Mellow Adlib Club. Mellow Echoes and Frothy Cups, from the album 書籍を読むときに流したいBGM, was released in the year 2024. The duration of the song is 1:30. Download Instrumental songs online from JioSaavn.