Re-reading this, I meant to write minor third on top. That is enharmonically the sharp nine. Sorry, Zero. Post has been edited.

[The major third in the lower octave and the minor third in the upper octave creates another interval of a major seventh, with the accompanying tension.]


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.