Diminished 7th arpeggio on Bassoon
Root, minor 3rd, diminished 5th, diminished 7th — symmetric every minor 3rd. Operatic / cinematic tension.
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Diminished 7th arpeggio on other instruments
Root, minor 3rd, diminished 5th, diminished 7th — symmetric every minor 3rd. Operatic / cinematic tension.