Working again.
Tested it again today & it was working. There are two ways to turn up the volume, one pushing the switch on the bottom & the other by clicking the visible option on the iPad.
My setting on the visible sound control was all the way down/off. I thought that is was a fast-forward or progress bar.
Thanks for all the help & suggestions. Never heard of cleaning the plug with alcohol. Researching problems of one sort often increase your knowledge about others.
I read that using a headphone splitter would require headphones with a battery booster installed. I had been amazed at how much a $30 pair of noise-cancelling battery-boosted headphones improved the sound. The one I use is "Comfortunes" made by Symtek. Had to look for a bit but found them on
Ebay for $30 a pair, shipping included. I recall paying $34.50 at Walmart for the first pair so I ordered a second pair so, using a splitter, I can share watching music videos with others. Hope I didn't seem too stupid