"InDulciJubilo"/"On Horseback" is a double A-side single and third overall by English musician Mike Oldfield, released in November 1975 by Virgin Records
success of his previous year's Christmas hit, "InDulciJubilo", Mike recorded another traditional folk melody dating from 1701 (first known publication)
Brightman and Paul Miles-Kingston in 1986). In 1975 Mike Oldfield had a top 10 hit with "InDulciJubilo" but this Latin song was performed as an instrumental