This collection documents speech varieties (definable registers) in Awiakay, and their relation to the overall social scene. It includes recordings, transcripts and analyses of lexical substitution registers such as ‘mountain talk’ and ‘hidden talk’, language of disputes and fighting, language used in Catholic charismatic activities, including spirit possession, laments, and all-night song/dance cycles, together with traditional knowledge necessary for understanding their use. Documentation of all speech varieties is accompanied with observational ethnographic films.