1936 Martin 00018 - sparkley highs, scallop bracing
1937 Martin 018 - scallop bracing , angelic highs
1960s Martin 018 - Nashville high-strung
Martin D-28 - with bridge-saddle FRAP, custom scallop bracing, good for rhythm
1962 Martin D-28 - 'Bob' 
1937 Martin D-18 - large, open sound, scallop bracing
1951 Martin D-18 - very loud, big sound!
1952 Martin D-18 - rich, complex tone, Larry's favorite
1954 Martin D-18 - a 'Dave Matthews' favorite
1960 Martin D-18 - clear and bright
1962 Martin D-18 - records well, producer's choice
Martin D-18 - (David Crosby model) plays easy, big sound, good highs
Martin D-18 DM - very bright tones (Neil Young model)