David Bulger

@dbulger.bsky.social

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Math/computing professional, fiction fan, serial dilettante youtube.com/@ghostbassdavid reddit.com/user/dbulger

A tune in three time dimensions. It's a rough ball of tetrahedra, and we're seeing successive cross-sections of it. Each tetrahedron is covered by a regular array of red, green and blue waves at different angles and spacings, but the wavefronts match up at tetrahedral boundaries. It's all surrounded by an ambient space with another regular wave pattern. The space rotates in 3D as we progress through it (for visual interest's sake). The tetrahedra generalise bars, and the ambient space generalises the usual appearance of the tonic chord at the beginning & end of a song. The three colours represent three voices in 3-part harmony (although actually this is just three synchronised melodies, & I haven't done anything here about consonance or dissonance).
An animated sequence of eight hypothetical chords in a universe with two time dimensions. The horizontal axis is "Lunch time," and the vertical axis is "Crunch time." Each chord is depicted as an "equation," with three single-frequency tones adding to equal the chord. The tones and the chord are each depicted as a grey-scale square field. The tones are regular, alternating light and dark stripes (corresponding to low and high air pressure) at various angles. The chords look more interesting, like a blurry lattice, or a little like an egg carton. Every second or so, the animation advances from one chord to the next, and each of the tones changes only slightly. Over the eight-chord loop, the second and third tones' stripes rotate 180 degrees anticlockwise and clockwise, respectively.
An animated loop of four chords (C in 1st inversion, G in 2nd inv., Am in 2nd inv., and F in root position). Each chord is depicted as an "equation," with three single-frequency tones adding to equal the chord. The tones and the chord are each depicted as a grey-scale horizontal band, kind of like a barcode, with time as a horizontal axis. The tones are regular, alternating light and dark stripes (corresponding to low and high air pressure). The chord is similar, but with a slightly more complex repeating pattern of light and dark grey stripes. Every second or so, the animation advances from one chord to the next, and each of the tones changes only slightly.
An animated sequence of eight hypothetical chords in a universe with two time dimensions. The horizontal axis is "Lunch time," and the vertical axis is "Crunch time." Each chord is depicted as an "equation," with three single-frequency tones adding to equal the chord. The tones and the chord are each depicted as a grey-scale square field. The tones are regular, alternating light and dark stripes (corresponding to low and high air pressure) at various angles. The chords look more interesting, like a blurry lattice, or a little like an egg carton. Every second or so, the animation advances from one chord to the next, and each of the tones changes only slightly. Over the eight-chord loop, the second and third tones' stripes rotate 180 degrees anticlockwise and clockwise, respectively.
An animated loop of four chords (C in 1st inversion, G in 2nd inv., Am in 2nd inv., and F in root position). Each chord is depicted as an "equation," with three single-frequency tones adding to equal the chord. The tones and the chord are each depicted as a grey-scale horizontal band, kind of like a barcode, with time as a horizontal axis. The tones are regular, alternating light and dark stripes (corresponding to low and high air pressure). The chord is similar, but with a slightly more complex repeating pattern of light and dark grey stripes. Every second or so, the animation advances from one chord to the next, and each of the tones changes only slightly.