art form

1 :  a form or medium of expression recognized as fine art sees dance as both an art form and an entertainment

2a :  an unconventional form or medium in which impulses regarded as artistic may be expressed describe pinball as a great American art form — Tom Buckleyb :  an undertaking or activity enhanced by a high level of skill or refinement easy conversation—an art form in peril of being lost to contemporary schedules — Joanna Pruess