I tuned it to A d f# b, but not sure if I liked it, so I tuned back down. Plus it made me nervous. My problem is twofold: I come from a guitar background and primarily am a singer/strummer and always made liberal use of a capo. I don't play in a group so if a song works for me to sing in the key of f#, no problem.....just capo at the 4th fret and use d, g, and a7. This works fine on my baritone ukulele, but not so much on my concert.....even at the 1st or 2d frets I don't care for the capo on the concert. Too bunchy and my particular instrument sounds best without a capo. I probably should've gotten a tenor. But I've got a couple hundred old time country songs and hymns in my repertoire and about 2/3's of them I've found keys on the concert that work, and I'm happy with that. One thing I've noticed about the concert uke is that certain chords sound better than others, like those in the keys of C, and G as well as Dm and Am. Amaj and D maj not as much. Not sure why.