Mechanism is related to Band. Band is related to Stage. Stage is related to Location. Location is related to Throat. 
Trick is related to Special. Special is related to Tap. Tap is part of Barrel. Butt is a type of Barrel. 
Mechanism <--RelatedTo--> Band <--RelatedTo--> Stage <--RelatedTo--> Location <--RelatedTo--> Throat 
Trick <--RelatedTo--> Special <--RelatedTo--> Tap --PartOf--> Barrel <--IsA-- Butt 