Hi Mark , yes that is the same Valentino that you knew in London !!there are quite a few youtubes of him .if you search wheeltappers and shunters club Valentino you will see him with the cordovox the program was broadcast on the itv channel many years ago and was a popular show , theme was like a traditional working mans social club "up north " as we folks say in the uk .
regarding your original subject "mind power " I find if I want to memorize any music I learn it and memorize it from the keyboard , I have learnt this rather late in life !!! I think it is to do with clearly seeing both hands working , anyway's right or wrong it works for me.....and then I play it on the midi-acoustic accordion . obviously when playing the accordion I rarely look at the treble keyboard and of course it's not possible to see the bass section ... I find that I have remembered all the chords in the left hand as well ...... regards