Listen to I'm Gonna Sit Right Down and Write Myself a Letter online. I'm Gonna Sit Right Down and Write Myself a Letter is an Unknown language song and is sung by Billy Williams with Dick Jacob's Orchestra. I'm Gonna Sit Right Down and Write Myself a Letter, from the album Memorable Hits 1955-1959, Vol. 8, was released in the year 2010. The duration of the song is 2:09. Download Unknown songs online from JioSaavn.