Friday Night Concerts in the Park have filled Cesar Chavez Park on 10th and J Streets with jammin' bands since the beginning of May and will continue every Friday night from 5-9 p.m. until August 14. In this storyline, The Sacramento Press will preview the concerts and help provide additional information on the artists and their music. Friday, June 5 Bucho will headline the concert, with Righteous Movement and Happy Mayfield opening (click each band's name for a link to their MySpace page with music samples). Bucho consists of singer and guitar player Gerald Pease, bass player Josh Lippi, Ben Schweir on the Hammond B3 and Fender Rhodes keyboards and Derek Taylor on percussion, as well a