The basic layout is an easy-to-intermediate (approximately grades 4 to 5) guitar version, designed to be usable also for keyboard, instrumental duet or larger groups. The chord names above the music give simplified accompaniments that can be played instead of or in addition to the full bass lines. The chords can be used for second guitar parts, for keyboard chord vamping or for accompaniment—single note or chord—on any other instrument. For musicians less used to reading low leger lines, every chord name matches the bass note given at the that point in the full notation. Where a secondary note is indicated after the chord name, for example D/F#, the second note is the one that actually appears in the bass line. Chord accompanists can play or ignore these extra notes. There is a modest amount of fingering and other information to help solo guitarists. Apart from that, these are flexible arrangements, leaving space for different kinds of filling-out according to the instruments used. There are no ‘official’ harmonies to Carolan’s tunes.