The presence of light-struck wash drawings of cloud-borne figures and angels by Giambattista Tiepolo proposes a reading of Degas's aerialist as a modern-day, secular version of such imagery, clearly suspended from her clenched jaw, not divinely supported.
If you wanted all five of the modes to run on a wash, then all five lights would light up, if you only wanted three modes to run, then only three lights would light up.