after 40 years or so, one can attune the left aural receptor to light operetta and varied Classical highlights, and the right to a whole spectrum of jazz masterpieces [performed by their respective disembodied and now celestial creators]  by slight twitching and modulations of the respective digital instruments, but that might only be some propagandist inducement to continued meditational efforts.

'And leave your hands free to do other things at the same time!'

Forgive me if I mistake your nuance here, but, from what one gathers, sub-meditation blanket masturbatory practice within the ashram meditation room seems to have been not without hazard, although one hears too of successful frenzied midnight orgiastic couplings before the altar between some of the most desperate and intrepid inmates. Have you any personal anecdotal info regarding either of these options?