While the Cathedral is being restored, CCS is relocating rehearsals and performances. This Friday night’s concert will be held at the Basilica at 7:30 p.m., and will be the culmination of the Embassy of the Czech Republic’s two-month “Mutual Inspirations” festival. Music by Viteslav Novak, Leos Janacek and Antonin Dvorak, three of the most esteemed 20th century Czech composers, will be featured in the program. Tickets start at $25 and can be purchased online. For more information, contact the CCS office at 202-537-5527.