Amplifiers; sound mixers with integrated amplifiers; cabinets for loudspeakers; subwoofers; loudspeakers; loudspeaker systems; cases for loudspeakers; sound recording apparatus; apparatus for recording, transmission or reproduction of sound or images; audio mixing apparatus; audio mixers; acoustic meters; metronomes; stereo tuners; sound recording media; compact discs featuring audio and video; DVDs; audio cassettes; radios; digital audio players; audio- and video-receivers; microphones; microphone stands; record players; keyboards; headsets; speaker mounting brackets; electrical connectors; cables, electric; electrical connection cables for computerized music; electric cables for guitars and instruments; electric spring cables, in the nature of jacks, for instruments; jack plugs; musical instrument connectors; connection cables for electric pedals; microphone cables; digital audio/video cables; optical cables; wah-wah pedals; electronic sound pickups for guitars; electric adapter cables; volume control pedals; digitizers; power connectors; circuit breakers; computer software; software to control and improve audio equipment sound quality; mobile apps; computer software applications, downloadable; educational mobile applications

Musical instruments; electronic musical instruments; electronic musical apparatus for instruction; flutes; stringed musical instruments; percussion instruments; keyboard instruments; electronic music synthesizers; music synthesizers; tuning apparatus for musical instruments; reeds for musical instruments; mouthpieces for musical instruments; bows for musical instruments; strings for musical instruments; cases for musical instruments; music rolls for use in player pianos; bridges for musical instruments; pedals for musical instruments; stands for musical instruments; music stands; keys for musical instruments; keyboards for musical instruments