I'm working with a song writer who writes with acoustic guitar. I have him record his vocal and acoustic guitar along with a metronome (or .dp file) at his intended tempo. This gets merged to a mono .wav file for temporary use on the Audio track in BIAB. He provides a basic chord chart with lyrics (which I edit or completely recreate in Microsoft Word.)
I normally only reference his audio file for the first section of the song. Say, intro-verse-chorus. I punch in the chords so they closely match up to the audio file. (they drift apart but that's okay) Then, since he or I will record the guitar parts ourselves I mute most guitar parts and solo track of any style I fish through. I am mostly looking for suitable drums, keys, strings, etc... since I can record bass, acoustic, electric. With a guitar knocking against the edge of my desk I go style fishing. I begin by filtering by tempo first. I save the potential styles and style favorites. BTW, style fishing can take several hours which is not bad all things considered.

Does the noise in your head bother me ?