. >> reporr: whatever the source, whatever the musical frawork, this living legend always tries, he sayu go by all kinds of churches, a they don't seem to know what chri was trying to ll us. >> reporteryou think it's a very simple message, wh he was trying to tell ? >> no, it,t's profound. probablyhe most profound thing in the bible. it's love ur enemies, do good to those wo hate you. this is what, tme, is the essence of christianity. ♪ >> reporter: and the essencof the8-year-old brubeck, though slowed receny by illness, is that he is stillmprovising, still composing. ♪ >> iidn't play it that way when you asked me cause my hands don't work. >> reporter: yea but your mind stl does. >> yh. ♪ >> reporter: becae what dave brubeck has arned is that whileazz can energize, even thrl, his religious music can transform. you have found music be a vehle to communicate god's command love one another more deeply. thas what it comes down to, i't it? >> yeah. >> rerter: you do that through your music. >> right. ♪ >> reporter: tough it all, his wife says he's own, musically and spiritually. in part, he