Billing, i.e. purchasing of data contents for use with electrophonic musical instruments; Protocols therefor; Management of transmission or connection time therefor

Full Title

Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments > Transmission of musical instrument data, control or status information; Transmission, remote access or control of music data for electrophonic musical instruments > Billing, i.e. purchasing of data contents for use with electrophonic musical instruments; Protocols therefor; Management of transmission or connection time therefor