Listen to How to Improve the End online. How to Improve the End is an Instrumental language song and is sung by Bitter Sweet Jazz Band. How to Improve the End, from the album Home Office Moods:仕事がはかどるJazz - A Tribute to the Music, was released in the year 2023. The duration of the song is 1:17. Download Instrumental songs online from JioSaavn.