Celebrating their 35th anniversary (with four original members still on hand), the eight-piece band gives spirited performances of “Beginnings,” “If You Leave Me Now,” “Colour My World,” and 13 others (including bonus tunes), inspired by a live audience and fans’ phoned-in requests. Long-departed bassist Peter Cetera may be missed, but his lead vocals are ably replaced by guitarist Keith Howland and especially bassist Jason Scheff (an outstanding player whose dad, Jerry, played with Elvis Presley). All in all, a quality show by a band whose consistency and longevity deserve respect