Key Chorale Come Together Choir Online Choral Rehearsals. Choral rehearsals are shot from the perspective of the choir, focused on Artistic Director Joseph Caulkins as he guides 10 singers and you through each rehearsal. Every episode builds on the previous one, giving you a sense of accomplishment and of being right there. Although this is not an interactive experience, the project is conceived to give the feel of being right there as a singer in the choir. Though it is not necessary, if you register, we will email you copies of the lyrics or music for each volume.