Anyone who's tried to play jazz knows that learning scales and modes is just part of the battle. To really understand the language of jazz, you have to perform with other people. At El Chapultepec Too, an outpost of the classic LoDo club, the Wednesday-night jazz-jam sessions serve as a proving ground for younger musicians who want to hone their chops in a live setting — whether horn players, bassists, pianists or drummers. Bassist Brian Wilson and veteran pianist Jeff Jenkins are usually holding down the fort, and when Greg Gisbert, one of Denver's finest trumpeters, isn't playing in New York, he'll sit in with the younger cats. It's hard not to get inspired when sharing the stage with guys like this.