Studio Two, EMI Studios, London
The film completed, and holidays taken, the Beatles returned to EMI Studios for three days to record the non-soundtrack side of the LP A Hard Day's Night, any surplus songs being set aside for an EP, Long Tall Sally, with that title song and "I Call Your Name" already in the can.
They worked this day fro 2:30 to 7:15 and 8:00-11:15 pm first recording five takes of "Matchbox" (released on the EP) and then tackling "I'll Cry Instead" (the LP), taped in two sections with six takes of the first and two of the second recorded for later editing, six takes of "Slow Down" (for the EP) and 16 of "I'll Be Back" (LP)
Visiting the afternoon session, and watching the Beatles record a cover of "Matchbox", his original recording, was Carl Perkins, one of the biggest influences on the group, who was over from America on a promoted tour.
The Complete Beatles Chronicle - Mark Lewisohn