Many definitions have been given that are accurate, but the meaning of the word 'Goth' is changing. For example in relation to 'Gothic' music, a lot of metal bands are now surfacing that are gothic-fusion or gothic inspired, and conform to some stereotypes of goth, but also do many different things in regards to sound or appearance.
Draconian is a gothic-doom metal band. They sound slow, and their riffs and soud is very dissonant and sorrowful.
Trail of tears is an operatic-gothic metal band, that are similar to bands like Nightwish, except they make use of Blast beats and screaming male vocals. Also the sorrowful riffs become present.