OS 10.5.8

I have access to a radio station that allows playback to previous recordings.
I have found one that has a section in it that I would like to isolate and get it on my HD. I've never had occasion to do this before and I don't know how to do it.
Any ideas?

jaybass


OS 13.6.6 iMac (Retina 5K, 27", 2017, 3.4 GHz Intel Core i5, 24 GB RAM, 2400 MHz DDR4. SuperDuper. 1 TB Lacie HD