Choir Rehearsal at The Concert Hall, Elm Street

6 singers rehearse at marked places in The Concert Hall, Elm Street. The places form three rows of two. From the conductor’s stand, rows count front to back and columns left to right. Places in successive rows line up. Directly across means the same row in columns 1 and 2. Diagonally adjacent means one row and one column apart. Arrival times are minutes before this rehearsal.