Weblog Alex Reuneker

Last Friday, 11 April 2025, around 20 linguists from LUCL – the 'LUCL Runners' – ran the Leiden Singelloop. All running linguists completed the +/- 6.5km course along the ‘singels van Leiden’. Afterwards, we enjoyed each other's company during the annual post-run party at Olga van Marion and Ton van der Wouden’s house along the route. Thanks to LUCL for sponsoring and all colleagues who supported us during the run!

The LUCL team of 2025

It was a bit of a challenge to run with our son in his stroller along parts the small, crowded route, but it was fun!

Again, an update to the metronome tool, but this was a rather large one, especially 'behind the scenes'. The update was done because of a couple of mails I received from swimmers. I didn't really know swimmers used metronomes, but it does make sense. Their needs are different from runner's, however - BPM's as low as 30 are not something I ever thought of as a runner. One of the swimmers also mentioned that it would be really helpful to generate metronomes in steps of 1 BPM in stead of the 5 BPM the previous version of the tool offered.

The new version of the metronome tool, with 1 BPM increments

Offering metronomes by increments of 1 BPM meant either much manual work (for every frequency I had to manually generate a 1 minute click track in Audacity, resulting in almost 200 manually created and converted files), or radically changing the way I generated the 1 minute tracks. I opted for the latter, as it meant both a (small but fun) programming challenge, and it would be more lasting solution. From this version on, I am using a Python script I wrote to produce sinewaves in NumPy.

You can start using the new version of the metronome tool right away at https://www.reuneker.nl/files/metronome. Happy swimming and running!

In 2020 I created a simple page with downloadable metronome MP3 files, ranging from 170 to 200 BPM. Each MP3 is an hour long and can be looped in your favourite player. This was sufficient for my purposes, but I (somewhat) recently received some emails from people who used the page not (only) for running, but also for swimming and other activities. They asked for longer MP3's and lower BPM's. I've updated the tool accordingly, and BPM can now be set as low as 60 BPM and maximum duration is increased from 60 to 600 minutes (yes, that is 10 hours).

(Updated) tool for generating metronome MP3's

If you're interested, everything is free and can be found on https://www.reuneker.nl/files/metronome.