So...erm.... acoustic guitar tuned down 2.5 steps in and open chord 1-5-1-3-5-1 (B,F#,B,D#,F#,B) with A at 432 hz, and
it hums like a 5-pound,2.5 -foot long Late Carboniferous Dragonfly 😆. A very slow burn because of busyness at real work, and needing to go easy on the fretting thumb. There will be noise though, before I croak, presumably. Recorded noise, I mean. The actual composition isn't likely to make it off the papers, but there's always EBow noodling just over the next hill...