How much of lounge pianists playing is from repertoire, and how much is improvised?

I'm unsure as to an arrival of correctly calculated percentage in discovery of how much improv is used during Pianistic lounge performances. A Pianist’s standard and familiar repitoire is the foundatiom for their hours-long accompaniment to a gathering.

Improvisation may be of substantial use when a request is asked of me, with my counter intent being to offer the musical suitor a longer, more in-depth rendition of the song they've so desired.

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Whether performing at Dinner parties, Engagement celebrations or a company’s Holiday gathering, the pleasantries of providing low-key background aires is mine.

Typically performed by myself is lighter fare from a sizeable Classical repitoire, with this repitoire generally not allowing improvisation unless a free form Cardenza is placed within the work, demarked “a piacere”, (or “at your pleasure”).

Light Jazz and compositions of my personal construction do offer measures in which I may perform at my will. Improv has never been of notice to surrounding guests as they generally know not the proper entails of any work I sound into their ears.

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