Dean Markley Blue Steel Acoustic Guitar Stringsstar rating 5EPSeptember 11, 2010Sound depends on a lot of things, but these in a Medium Light give me the sound I have long been looking for out of my old Guild D40 (with a brass nut). Good brightness for lead on all 6 strings, without being thin, and they sound fine on rhythm as well. It's also just a little bit different, interesting sound. Playability is great They don't seem to last forever, but keeping them clean helps