On 21 February 1970, McCartney moved to the more familiar Abbey Road Studios, with the booking again under the name of Billy Martin. There, he carried out further mixing on the previously recorded material, as well as taping new selections. On 22 February, McCartney recorded "Every Night" – another composition rehearsed during the "Get Back" sessions, and a song that authors Chip Madinger and Mark Easter note as the "first 'professional' recording" on the finished album, given its position as track 4, following "Valentine Day". The same day McCartney recorded "Maybe I'm Amazed", a piano-based ballad dedicated to Linda, and, in Madinger and Easter's description, "the most elaborate instrumental track on the LP". The final new recording for "McCartney" was "Man We Was Lonely", which he taped on 25 February, having composed it earlier that day. It is the track on the album on which Linda's vocals are most audible.