The idea behind this get-together of three electrifying horn men and a rhythm section capable of incendiary accompaniment was to approximate a Jazz At The Philharmonic concert. JATP was a musical, sociological, and cultural phenomenon whose most notable element, often, was audience participation. The audience's contribution usually consisted not of listening, but of whistling, yelling, stomping, and clapping time on the wrong beats. If this 1983 recreation indeed summons up JATP, it is a blessing because it recalls the good part, the music. At its best, JATP was a successful jam session. That's what Lockjaw Davis, Sweets Edison, Al Grey, and friends achieve in this agreeable encounter. Among the friends is Roy McCurdy, a drummer too little praised. McCurdy's snap and zing set the swing and keep it going. Art Hillery and John Heard round out the rhythm section, roundly.