A search page for black, doom, death and classical shows without the excess clutter of entertainment bands and comedians was my thought. The main problem is getting scheduling input from the outside world.
Ideally a fan could search 3 months in advance for:
City, state, province, country
Specific private venue in a given city
Band or orchestra name
Music style black, doom, death, classical shows
Whatever combination of the above
Registration for e-mail alert of upcoming events based on user's search criteria is doable.