Listen to Waiting in Vain (Instrumental Version) online. Waiting in Vain (Instrumental Version) is an English language song and is sung by United Guitar Players. Waiting in Vain (Instrumental Version), from the album Instrumental Bob Marley Renditions on Spanish Acoustic Guitars: Reggae Legend, was released in the year 2014. The duration of the song is 4:12. Download English songs online from JioSaavn.