I’ve had my Seagull S12 since 2001. No guitar I own has put in more hard yards for me. It was my main acoustic guitar in both the bands I was in between 2006 and 2011, so it went to every rehearsal and every gig, it got tuned and retuned endlessly, it got dropped, dinged, scratched and beaten up, and I went through more high Gs than you can count. It’s a pretty great-sounding instrument and, by the standard of 12 strings, pretty easy to play too. The neck is wide enough that you can actually use it for fingerpicking, but not so wide that barre chords are problematic, and the action is reasonable too. You can’t really ask much more from an acoustic guitar
I should play it more really – these days I pretty much only get it out for recording. I’m still, years after I started doing it with my old band (the Fourth Wall, god rest them), really into the tonal effects you can get by overdubbing acoustic guitars, especially 12 strings against 6 strings.
All the reasons that you might double electric guitar parts apply equally to acoustic guitars parts: you can do it to provide width, to blend different voicings of the same chords, or to blend the tones of two different instruments to create a sound that wouldn’t be obtainable any other way, and so on. The practice of mass acoustic overdubbing is somewhat rarer than it is with electric guitar parts, though, which might be for no other reason than the fact that it’s more difficult to do well.
Acoustic guitar is an extremely percussive instrument. When you record two of them (whether you personally record two parts or the two guitarists in your band record one track each), it becomes very important that the two parts are in time with each other and in time with the snare drum. The further out the strums are from each other or – worse – the snare drum, the more the ear is likely to hear them as flams. This can get distracting for the listener pretty quickly.
If you’re undeterred, though, here’s a couple of tips. Blending a standard-tuned part with an open-tuned part can be super fun. Imagine using a C-based tuning like CGCFGC on a 12-string guitar in the context of a song where the main progression is something like C/dminor/aminor/G: you can create a rich, resonant blend that wouldn’t be possible from two standard-tuned parts, really taking advantage of the drone strings and the low C bass. And of course, the effect of this will be even greater if the open-tuned part happened to be played on a twelve-string.
Another tip, particularly if you don’t want to get involved in open tunings, is to use a capo to track a second part using different chord shapes to the first part. Take the progression from the previous paragraph. How about putting a capo on the third fret and playing A / bminor / f#minor / E? Yeah, that’s right: it’s the same sequence as the guitar is sounding a minor third higher than concert pitch because of the capo. Once again, this can be used to create a tone, a richness of sound, that simply can’t be drawn out of one instrument. Again, if one of these parts is played on a twelve-string, the effect is amplified still further.
Coolest of all, but oh so difficult to do even vaguely well, is blending 12- and 6-string fingerpicking parts. I think that’s what Lindsey Buckingham’s up to on Fleetwood Mac’s Landslide (from 1975’s Fleetwood Mac, the first album the band made with Buckingham and Stevie Nicks). The part on the right sounds like it’s got octave notes in it, but it might be some clever psychoacoustic trick. However he did it, it’s super-cool, and it definitely sounds like a 12 string is in there.