Hijos de Mayo was a 4-piece band from Eindhoven, the Netherlands. They started in 2006 and disbanded in 2012. Their style can be described as stonernoisepostrock / poststonernoiserock.: heavy riffs, screeching noise and psychedelic atmospheres. May 1 2011 they released their first full album In Sound Underground as free download at Bandcamp. After they disbanded, they released 'zwanenzang: rehearsal jams and outtakes' in early 2013. (also available as a free download on Bandcamp).