In my present parish, the choir sings from an area proximate to altar and ambo on the edge of our antiphonal seating. So it’s easy for singers and instrumentalists to excuse themselves for a verse of the Communion song.
Accompanists have varying practices. A few line up with the Communion ministers to receive. Others have it passed on to them by another music minister or family member. I try to receive at the end of the Communion procession.
With my last large choir that sang from a loft, we arranged to have two ministers ascend to distribute Communion. The large choir in my Kansas City parish would have the songleader/cantor begin the Communion song with the organist and the choir would come down all three reception aisles to receive the sacrament first.
I noticed on the Musica Sacra forum that one diocese advocates for the choir receiving Communion after the Chrism Mass. That’s about the poorest solution I could consider (aside from home delivery) especially for a Chrism Mass, considering the number of ordinary ministers present.
Sit in the purple chair, and be the liturgist. Tell how you would choreograph it.