The first track of the "Suppose Session" is the recording, Elvis made at home in 1966. We hear him singing and accompanying himself on piano. Vocally it's a fine rendition and his piano playing  also isn't all that bad.

On March 20, 1967 Felton Jarvis booked a three-hour session to overdub the tape Elvis had send him. Considering the source the result sounds mighty fine, but in the end it was decided to re-record the whole thing during the soundtrack sessions for the "Speedway" movie.

This is the instrumental track, which was used to beef up the home recording.