Sigma Alpha Mu fraternity will repeat their "Bounce for Beats" marathon to benefit the Charlottesville-Albemarle Heart Association. The gentlemen will bounce a basketball for a total of 81 hours at Peoples Drug Store and Leggetts at the Barracks Road Shopping Center, K-Mart, and at WELK radio station downtown. Cavaliers' Coach Bill Gibson and several University Basketball players will be present to help kick-off the campaign at noon today at People's Drug Store. The marathon is scheduled to end at 6 p.m. Saturday. The Sigma Alpha Mu sponsors will attempt to surpass last year's total collection of $3100.