There are at least eleven different bands that go by the name “Ethereal”:
1) A Rapper/Producer/Live Electronic Artist from Atlanta, Georgia.
2) A black metal band from Liverpool, UK.
3) A Goa/Psychadelic Trance duo from Sweden.
4) A black metal band from Colombia.
5) A Metal band from Portugal.
6) A black metal band from Colorado, USA.
7) A Melodic Death Metal band from the Netherlands.
8) A pre-Lacuna Coil project that released only one 2-song demo before changing name to Lacuna Coil.