Jazz concert, an admission fee is only 1,000 KRW(less than $1).
Each day, different jazz musician.
Week : 19:30
Weekend : 17:30 (sometimes 17:00)
Running time is about one and half hour.
Place : KT Arthall [Line Num 5, Kwanghwamoon station, Exit 2, need to walk less than 1 minute]
Contact Num : 1577-5599
I tried find information for traveler or foreigner, but failed.
Website does not support foreign language, so only way is making phone call, 1577-5599.