Hefty39 has 2 TesseracT concerts.

TesseracT is a progressive metal band from Reading, UK, that uses math metal, djent, ambient and technical metal elements in their music. TesseracT started out back in 2003 as an archetypal djent band in then-teenage Acle Kahney's bedroom. What started as an outlet for creativity and experimentation grew and Kahney posted clips of his technically heavy guitar work on forums such as Sevenstring.org, taking the feedback on board and gradually improving his technique.