Sorry! Thanks to those who spotted my error (although Paul SInha is well worth a listen and is now part of the Parkinson's family). I've corrected the link to the audio recordings in the original update but just to be sure here it is again in full:

https://www.communitydance.org.uk/developing-practice/dance-for-parkinsons-partnership/tango-in-lockdown-the-tango-effect