I recently watched the live performance of 'Stairway to Heaven' by 'Led Zeppelin'. I had a question while watching that song but it even applies to other songs.
See during the section of the song where Jimmy Page does his guitar solo. The backing chords are G,F,Am. Now during a recording any of the performers may add the chords and play the solo separately.
But during the live performance when the lead guitarist is doing a solo who plays the backing chords. (after the solo ends and when Plant does the vocals the same chords are played by Jimmy Page I suspect) I had this query because not all bands seem to have a rhythm guitar player as such.
For instance in this song - Jimmy Page is the lead guitarist, Robert Plant is the vocalist , John Bonham the drummer and John Paul Jones is using the mellotron.
Is it the case that there are support performers also who do the rhythm guitar or is it the case that the backing chords are not played at all on a guitar as such during the solo. Or thirdly , is there like a effects processor which can play the backing chords ?