@AllThatJazzZUnfortunately I rarely reload songs other than of the 80s due to just not having room to keep all the songs I run across... I run across a 60s song and share here and usually lose it except for a few I keep in a folder on an external drive.
One old blog "With a Song of Life" has a few albums to download, but he offers a very very slow download speed on his shares hoping you will spend money and buy upgrades which he gets a portion of. But if you have the bandwidth and the time, you can download the over time. If they have not expired from the host. Downloading can be a fun game since the servers that host the files are constantly looking to trick you into stuff and pop-up crap (often vulgar) is not worth the trouble to navigate. Unless you have a good ad-block program and know what you are doing, it can be dangerous (spyware, ransomware, viruses, and malware) to download.
https://forwardwiththesong.blogspot.com/search/label/Glen%20CampbellI unfortunately offer faster downloads, but they only last for 3 days... I will try to remember to ping ya if I do run across some of his songs... but my memory is about as good as Biden's to be honest. I think you can subscribe to threads like this one somehow.. thus you get pings when new stuff is uploaded... I think Pookie does that so he doesn't miss that one gem that eluded him... Both him and Easyace probable have all of us beat with music collections from this time period.
Another trick if you don't have to have the highest quality music is to just download music via videos on YouTube. You can copy the URLs at YouTube and go to one of many online download sites that will convert the videos to Mp3s for ya...
Here is one such site...
https://www.flvto.biz/en55/ Paste the URL of your video from YouTube there and check the right boxes (MP3 and accept their cookie box) and hit enter... it will take a minute to convert and then you click "download"... A pop up download will appear and you want to save it to your place you pick on your computer (desktop for me).