Improvisatory [adjective]

● Ad hoc

● Ad-lib

● Automatic

● Casual

● Expedient

● Extempore

● Fake

● Free

● Immediate

● Impromptu

● Informal

● Made-up

● Makeshift

● Offhand

● Snap

● Spontaneous

● Unplanned

● Unpremeditated

● Unprepared

● Unrehearsed

● Unstudied

● Spur-of-the-moment

● Autoschediastic

● By ear

● Extemporary

● Improv

● Improviso

● Jamming

● On impulse

● On-the-spot

● Toss off

● Toss out

● Winging it

● Rehearsed

● Prepared

● Premeditated

● Planned

● Deliberate

● Improvisatory

● Improvisational

● Virtuosic

● Contrapuntal

● Compositional

● Pianistic

● Lyrical

● Rhythmic

● Choreographic

● Impressionistic

● Melodic

● Mozartian

● Fugal

● Orchestral

● Jazzy

● Percussive

● Polytonal

● Songful

● Declamatory

● Gestural

● Expressive

● Expressionistic

● Microtonal

● Chordal

● Aleatoric

● Atonal

● Stylistic

● Rhapsodic

● Rhythmical

● Poetic

● Idiomatic

● Idiosyncratic

● Melismatic

● Pentatonic

● Dissonant

● Balletic

● Pointillistic

● Symphonic

● Bebop

● Performative

● Operatic

● Discursive

● Explorative

● Meditative

● Nonet

● Mozartean

● Beethovenian

● Songlike

● Metrical

● Handelian

● Aleatory

● Syncopated

● Cadenced

● Propulsive

● Incantatory

● Imagistic

● Painterly

● Chromatic

● Uncontrived

● Harmonic

● Expressional

● Naturalistic

● Absurdist

● Baroque

● Tonal

● Musical

● Formalist

● Apollonian

● Tuneful

● Soulful

● Dramaturgical

● Artistic

● Theatric

● Bluesy

● Writerly

● Diatonic

● Synesthetic

● Uninflected

● Entrancing

● Songwriting

● Essayistic

● Dialogic

● Effortful

● Aphoristic

● Textural

● Canonic

● Easeful

● Classical

● Unshowy

● Overfamiliar

● Sinuous

● Nonrepresentational

● Kaleidoscopic

● Unmelodic

● Poetical

● Elegiac

● Songcraft

● Ethereal

● Ragtime

● Pianissimo