Here are all possible combinations of three notes on one string without going above the fourth fret:
aaa ard bab bre rar rda dad ddb eae edr aab are bar bda rad rdb dae ddr eba edd aar ada bad bdb rae rdr dba ddd ebb ede aad adb bae bdr rba rdd dbb dde ebr eea aae adr bba bdd rbb rde dbr dea ebd eeb aba add bbb bde rbr rea dbd deb ebe eer abb ade bbr bea rbd reb dbe der era eed abr aea bbd beb rbe rer dra ded erb eee abd aeb bbe ber rra red drb dee err abe aer bra bed rrb ree drr eaa erd ara aed brb bee rrr daa drd eab ere arb aee brr raa rrd dab dre ear eda arr baa brd rab rre dar dda ead edb To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
