harmonic

There’s no banjo, slide, or pedal-steel guitar here, and the arrangements zero in on simplicity, conveying harmonic structure and mood with only essential instrumentation, which keeps the emphasis on the songwriting.

Graphene has long been a promising candidate for HHG research, but its perfect symmetry restricts it to producing only odd harmonics -- frequencies that are odd multiples of the original light source.

The significant difference in the masses of the colliding black holes also produced a "higher harmonic," a kind of overtone similar to those heard in musical instruments.

After revisiting Edgard Varèse’s music, he built upon Varèse’s ideas about building and extending musical structures that are independent from standard harmonic progressions.

“Like, not to get too nerdy about it, but there really is this harmonic language that’s only in Springfield.”