Hear us in action (mp3 file) - http://www.glcsing.org/02_This_Joint_Is_Jumpin.mp3

Barbershop Harmony Defined  -  http://www.glcsing.org/0_barbershop_defined.pdf 

The Origins of Barbershop Harmony  -   http://www.glcsing.org/0_BHS_men.pdf

Biography - Great Lakes Chorus Director Sylvia Karpinsky   -   http://www.glcsing.org/bio_Sylvia_Karpinsky.pdf

Great Lakes Chorus  -   http://www.glcsing.org/0_Great_Lakes_Chorus.pdf

Sweet Adelines International  -  http://www.glcsing.org/0_SAI_background.pdf

Sweet Adelines International Press Room  -   http://www.sweetadelineintl.org/press-room-main.cfm