https://pressroom.prlog.org/guitarcoursesws/ About GuitarCourses.ws - GuitarCourses.ws is a directory of online guitar courses and producer of the Fretboard Trainer application to help guitarists learn the fretboard. https://www.prlog.org/10512098-guitarcoursesws-launches-free-fretboard-trainer-software.html GuitarCourses.ws are launching their Fretboard Trainer, which is a free software application designed to help guitarists learn the guitar fretboard through lessons and practice drills performed on a virtual fretboard.Sat, 30 Jan 2010 18:21:00 GMT