HAPPY TYMES JAZZ BAND: The Happy Tymes Jazz Band will perform at Omaha Center in Cherokee Village Nov. 6 at 2:30 p.m. The concert is part of the Spring River Performing Arts series.The performance is open to the public. Admission is $15 per person at the door. The Happy Tymes Jazz Band plays modified New Orleans style, incorporating the Chicago innovation of having each musician take a chorus. A certain freedom of expression is extended to each musician to depart from the written melody and add his own embellishments and alterations with the harmonic and rhythmic limitations set down by the composer.