[cnasc]

Pretty cool! I made something like this a few years ago, but nowhere near as sophisticated. One suggestion: as of late I've been playing guitar in perfect 4ths tuning, and it would be helpful to be able to change the tuning of individual strings on your tool to enable that (and any other alternate tuning)

[tribby]

if you're looking for scales in alternate tunings, an old website called "all guitar chords"[1] has got you covered, even if it's not as pretty an interface as OP's site. I found it very useful years ago when re-working some hindustani music for guitar in open C tuning. it's one of those sites I'm always a little surprised hasn't just vanished from the internet.

also, just because it's a saturday, I suggest anyone into open tunings on guitar check out this list of tunings used by james blackshaw.[2] his music is a lot of fun to play.

1. http://www.all-guitar-chords.com/guitar_scales.php

2. http://archive.fo/uqH3d

[adzm]

I would also love to be able to explore alternate tunings. I often use DADGAD and CGCFCE for example, among myriad other open tunings.

This also opens up the possibility of using this for other string instruments with other tunings, like ukelele (gCEA) and banjo (gDGBD) et al.

[machak]

I'll introduce alternate tuning, although it might take few months as I am busy with some other improvements (printing being one of them)

[posamari]

What kind of music do you play and how do you like the new tuning so far? Were there any unexpected difficulties or benefits?

[cnasc]

I would be hard pressed to come up with a coherent genre for what I play, I guess it's really a hodge-podge of everything I've been exposed to musically.

I like it a lot. I'd say I play 95% in P4 now, after starting about 3 months ago. I keep another guitar tuned standard right next to it, and find myself reaching for it less and less the more I get used to it. If you know standard tuning well, most of the work is just a matter of reprogramming your muscles.

The biggest trade off is that all your open and barre chords are gone (there are open and barre chords in P4, but many of them are hard to play and none of them are straight equivalents to what you have in standard--the other side of that is that some unusual chords are now easier, so it's a good way to experience a different flavor), so if you play music that relies on those you have to make a big adjustment. That can be an opportunity, since now you have to get creative with how you play. A chord over 3 or 4 strings doesn't sound as huge or sparkly as an open chord, for example, but it can be interesting in its own right and of course it also opens up some sonic room if you're into layering many parts together.

The biggest gain is that the scales and chords you learn are now always the same without that b-string bump. A lot of things just have less mental overhead now. The benefits sound less tangible than the drawbacks, I know, but I think it's worth a try. It's pretty easy, just tune your two highest strings up a semitone. And easy to go back if you hate it, of course.

[3131s]

Tuning in 4ths is great for scalar playing. I play in various tunings of 4ths and 5ths, it makes it easier to play fast intervalic runs.