While other makers produce over-sized guitars with 4 strings and call them acoustic basses, Michael Kelly builds great acoustic basses designed from scratch for bass players. The Firefly is an affordable bass that provides great acoustic bass performance. You get a spruce maple top, triple ply bound deep body for great tone. The Firefly is a "looker" to, with real flame maple on the back and sides for that exotic wood look and the brighter tone of maple.