SANTA BARBARA — UCSB Arts & Lectures (A&L) presents the Martha Graham Dance Company’s Graham100 on Wednesday, October 4 at the Granada Theatre. Recognized as a primal artistic force of the 20th century, Martha Graham single-handedly defined contemporary dance as a uniquely American art form. In this evening of new and reimagined works framing a Graham classic, the company performs Hofesh Shechter’s high-energy CAVEand Graham’s Dark Meadow Suite, an abstract work about life’s journey and the search for connection with one’s self and one’s community. A reconstruction of Agnes de Mille’s Rodeo rounds out the program, with a reorchestration of Aaron Copland’s score performed by a live bluegrass ensemble led by Punch Brother Gabe Witcher.