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CallSine is a band from Southern Maryland comprised of veterans and engineers.  Hence the unconventional spelling of the band’s name:  Callsine.  No it’s not misspelled.   In CallSine, the band brings its zeal for music, specifically 90s and early 2000s rock, engineering, and aviation.  But don’t worry they won’t break out the trigonometric functions (sine or cosine) of a triangle unless they lose an arm-wrestling match. 

These fellas have fun on stage and love to play it loud.  Check them out the next time they play near you.