I own a CEO-5 Martin guitar and I play BLUEGRASS music. The Sound is there when you need it and it has a great sound. I take lead breaks all the time and I have had alot of people tell me how great it sounds and it stays in tune very well, but I don,t try to beat the hell out of it either. It is loud enough so I don"t have too! I have calluses so playing isn't bad for me.I have been playing for years .I'll never play anything but a Martin. Only the tough can play a martin. It's a great instrument. Also, for those that don't know what a CEO-5 is, It's a 12-fret, has a bearclaw spruce top, sapalo back and sides, mother-of-pearl around the soundhole, slotted headstock and herringbone around the body.If you ever see one try it! Keep on Jammin'& Lovin' it.   Joan