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This site is designed by and for
 George Yefchak.


Time-of-flight mass
spectrometry demo

Glossary of
Rehearsal Terms

How Oboe Reeds
Are Made


Conducting the
South Bay Philharmonic
See video on YouTube

Playing Star Wars
in a Star Trek costume
See video on YouTube

Guest conducting
Star Trek in costume
See photos & video


Costume worn for a Halloween contest at work. I won!
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