Ptolemy
- BPM
- 122
- Open Key
- 9d
- Energy
- 79/100
- Pop
- 0/100
- Length
- 7:09
- Released
- 2015
- Genre
- Tech House
- Loudness
- -7.3 dB
- ISRC
- ES35G1200231
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
A club-tempo tech house cut, Ptolemy sits in A♭ major (4B) at 122 BPM. The feel is dark and driving. The groove is strong and floor-ready. The mix is almost entirely instrumental. A 2015 production that still circulates in sets. More underground than 99% of Third Son's catalogue. In a set it works best as a floor-filler.
- Groove:
- groovier than 75% of Third Son's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
FAQ
What key is Ptolemy in?
Ptolemy by Third Son is in A♭ major, or 4B on the Camelot wheel.
What BPM is Ptolemy?
Ptolemy runs at 122 BPM, a club-tempo track.
What mixes well with Ptolemy?
From 4B it blends harmonically with 5B, 4A, 3B. Moving to 5B lifts the energy a step.
Is Ptolemy good for peak time?
With energy 79 out of 100 at 122 BPM, it works best as a floor-filler.
Mixes harmonically
4B → 3B · 5B · 4AFrom 4B, 5B (E♭ major) lifts the energy a step; 4A (F minor) settles into the relative minor; 3B (D♭ major) cools the energy down a step.
How to mix it
In 4B at 122 BPM: 5B (E♭ major) — move to 5B to push the floor harder; 4A (F minor) — switch to 4A for a mood change without losing the groove; 3B (D♭ major) — drop to 3B to bring the room down gently.
Pitch range at ±6%: 115-129 BPM — anything in that window beatmatches without sounding stretched.
Key on the fader: without key lock (Master Tempo on CDJs), above roughly +5% it plays a semitone higher, so treat it as 11B rather than 4B; below -5% it reads as 9B. With key lock on, it stays 4B across the whole range.
Programming: a floor-filler.
Similar tempo
Within ±3 BPM of 122 — beatmatch without a big tempo pull.
More tech house
More from Third Son
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 122 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
Every insight on this page, for your own library.
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