Have you seen my book on cocktail piano? http://www.billspianopages.com/cocktail
A tutorial for all those people who have been asking for more material on cocktail piano. This one covers a basic exercise that you can use to practise cocktail and lounge piano voicings and right-hand control.
Here’s the playlist on really basic harmony, by the way – essential stuff for beginning cocktail pianists: https://www.youtube.com/playlist?list=PLBF7D1C98E441233F