The Quaternions

Notice: Rehearsal Are Back

We thank everyone for their patience through the COVID-19 pandemic. We are pleased to announce that we are back, rehearsing in person at Hope Lutheran Church. The situation continues to be monitored regularly, and the board has decided to follow the guidelines from the Barbershop Harmony Society, in combination with CDC and ACDA guidelines. At this time, we continue to sing with masks whenever anyone is present who has not been fully vacinated. It is possible this will change soon as the vaccination rate increases and the number of COVID-19 cases drop. Check back here regularly for update.

Bozeman/Belgrade Montana
This group is for hire
Contact Email: 
Contact Phone: 
(443) 851-2809

We are one of the organized quartets in the Bozeman Chord Rustlers—The Quaternions. What the heck is are Quaternions? According to Wikipedia (the repository of all knowledge, right?), quaternions “are a number system that extends the complex numbers. … [They] form a four dimensional associative normed division algebra over the real numbers.” Importantly, i2 + j2 + k2 = –1. Yikes!! At least it involves four things. So the Quaternions Quartet is a group of three complex guys (all computer scientists) and a real one (a history guy) who have come together to sing barbershop harmony. John Sheppard (i2), the lead, is a computer science professor at MSU. Jesse Sheppard ( j2), our bass, graduated with a math degree from MSU and is now a PhD student in the computer science department. Shane Strasser (k2), our tenor, was a double major in math and computer science and is about to complete his PhD in computer science while studying in John’s lab. Then there’s the other one. Dave Schrupp (–1) sings baritone, is a retired political science professor, and balances out the group. In short, we are almost all really “mathy,” so we looked for a name that reflected our mathy, geeky personalities that also had something that could relate meaningfully to singing in four-part harmony. Thus, the Quaternions!