THANK you to al who responded on this issue.
I eventually made an album play!
However, when I then created a playlist from different albums, the playlist behaved in the same way wjen I clicked the play icon...it repeated the same track over and over.....
I then discovered that to make the playlist play all the tracks , one has to click on each track and add it to the 'up next' or 'play next' menu by clicking that too.
Utterly crazy on a £1,600 computer that is supposed to be user friendly etc.
Both the 'play album' and 'play playlist' should be acheivable with on click, not all that faffing about.
After all , itunes is a MUSIC PLAYER APP folks.
I think Apple is either taking the mickey or the software designer has his/her head lodged quite firmly in a place where they can only see their own waste matter.
It should be as easy as apple pie.........it is very unclear and a faff od clicks and preferences to execute actions that ought to be the default.
One wonders if some sort of mental illness is the culprit?