You know she didn't. I'm sure it was cash on the barrelhead.
When singers need charts, and often many at a time, I like to offer them extended payment periods; the work's more important and I know how cabaret folk especially live hand to mouth. I usually insist they pay the copyist in full and work out something with me. Once the work is finished and the initial payment is made, it's all found money and I don't care generally how long they take to pay, but right now, because I lost work in August while I was sick, and because I've had to deal with estmated state and government taxes, a quarterly health insurance premium, prescriptions and medical expenses from nutritionist to physical therapist, I am currently in the hole. I thought i'd be getting the check for the property closing and that hasn't happened, the Library of Congress takes up to six weeks to pay for the LiFE BEGINS AT 8:40 invoices, I'm waiting for the next payment from the Herbert-Kern project, and I'm up to my ass in debt until something comes in.
One of the two singers owing me money had a deal to pay me half upon receipt, a quarter after the first concert using the charts and the last quarter within the year. I'm waiting on the last payment from her. At the moment, i'd be happy to get the final $1200 in 6 $200 payments.