EXAMPLE GEORGE HARRISON STYLE
[Bar 18] Guitarists from the ‘50s and ‘60s would play this FMaj7 voicing by hooking the fretting hand thumb over the top of the neck to fret the 1st fret of the sixth string. It’s a great way of keeping the open first string clear so you get that lovely FMaj7 sound. Indeed, you’ll hear it in players from other genres too. Chet Atkins used this shape a lot, as did David Bowie.
[Bar 23] Another songwriting trick used by George but certainly not exclusive to him – the Iv Major chord (C) briefly changing to a dominant (C7) before reverting to the I chord (G).