🎼 Matt Mangels 🎹

This is my homepage. There are many like it but this one is mine.

Welcome to the personal website of Sean Matthew “Mangels” Hall. I’m primarily a musician (keyboards and vocals) but I also tinker with software now and then.

Upcoming gig — New Years Day 2026

I, along with my friend Dan Dectis, will be sharing keyboard duties at Downtown First Thursdays for live Karaoke on Thursday, Jan 1st 2026. DTFT takes place along 2nd street between Market and Howard in San Francisco. If you like to sing come check it out!

Selected Music

All My Exes Live in Texas (Sanger D. Shafer/Lyndia J. Shafer) — Live at Hotel Utah, June 23, 2014
Lonely (original song) — Live at Hotel Utah, May 8, 2017
Clairvoyance — Original instrumental track, 2013
Draymond (parody of “Dream On” by Aerosmith) — 2017
Elegy For Armando — Improvisation from February 2021 in honor of Armando “Chick” Corea.
Solo piano cover of XTC's “Chalkhills & Children” — Approved by Andy Partridge himself! He has since deleted his Twitter account and thus I can't link to the tweet where he said this, so you'll have to take my word for it!
“Fantastic work man ! that is marvellous, don't know how you do it, my piano playing is Neanderthal up to that. Beautiful, well done.”
The Come Up — I came up with the melody and chord progression to this beat that was produced by local rapper JC (c. 2010)

Software

Countdown — Based on the UK game show of the same name (no copyright infringment intended!)
CA Counties — How many of California's 58 counties can you name? Play this game to find out!
SF Daily Weather Records — The record High/Low temperatures and precipitation for San Francisco on today's date. Formerly a bot that posted to Mastodon.
Temperatures Around the Bay — A map of live temperatures from more than a dozen different weather stations in the greater San Francisco Bay Area. UPDATE June 2025: the API from the NWS I was using is not currently functional, possibly due to DOGE-related fuckery.
WordHole — Guess the 5 letter word
afd_to_json — A Python script that takes an Area Forecast Discussion (AFD) from the National Weather Service and turns it into JSON. Currently only works with Forecasts from the MTR office (San Francisco/Monterey Bay Area).

Miscellaneous Content

Why Won't Google Mark Atherton Station as Closed? — The curious case of why a train station that closed 4+ years ago is still listed as an open, active station on Google Maps.
Name Drops in Elton John's lyrics — Elton's lyricist Bernie Taupin loves to name-drop; this is a partial list of all the names mentioned in Elton's work.

Me playing the melodica at the Community Music Hangout in Golden Gate Park.

Contact

Email: m@mattmangels.com