uncontrived, unmannered, uncharacteristic, beguiling, artful, endearing, improvisatory, chameleonlike, mozartian, songful, songlike, overfamiliar, easeful, uninflected, melancholy, instinctive, artless, fugal, delightful, unshowy, tuneful, playful, nervy, unrushed, epigrammatic, winsome, sublime, charming, lyrical, stylistic, graceful, rueful, unpremeditated, witty, plangent, stagy, undramatic, pantomimic, unhurried, comical, forgivable, breathy, mozartean, stagey, incantatory, unmemorable, wordless, ineffable, deadpan, sloppy, kyrie eleison, exuberant, purposeful, unmodulated, shavian, indefinable, non troppo, unsentimental, sensual, guileless, effortless, subtle, pointillistic, blithe, mesmeric, melodic, dirgelike, nabokovian, spellbinding, droll, uncanny, undemonstrative, forgettable, unselfconscious, suspenseful, mezza voce, uninventive, unaffecting, unostentatious, virtuosic, mesmerizing, slapstick, contrapuntal, treasurable, captivating, poetic, lieder singer, larky, nonchalant, unerring, gestural, inexpressive, idiomatic, insouciant, zestful, ad lib, acter, overlong, rhapsodic, singable, uptempo, spontaneous, irrepressible, restrained, unrestrained, unconstrained, uninhibited, childlike, uncoerced, undirected, untrammeled, anarchic, boyish, buoyant, constrained, volitional, wholehearted, cordial

uncontrived, unstudied

unstrained, voluntary, willing