Downloadable music files; downloadable musical sound recordings; downloadable computer software for creating and editing music and sounds; downloadable software for sampling music; downloadable software for mixing music; downloadable software for sampling and mixing music; audio recordings featuring drum sound libraries; downloadable computer software for music composition; downloadable data compression software for musical files; musical sound recordings; sound recordings featuring percussion sound libraries; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for the transmission of signals from one or more instruments to one or more hubs; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for the transmission of signals from one or more musical instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for the transmission of signals corresponding to actuations of one or more musical instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for receiving signals from one or more musical instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for producing sounds based on actuations of one or more musical instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for producing sounds based on actuations of one or more electronic musical instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for producing sounds based on actuations of one or more percussion instruments; downloadable software and electronic sound mixing, processing, and synthesizing apparatus for producing sounds based on actuations of one or more electronic percussion instruments; sound effect pedals for musical instruments; electronic effects pedals for use with musical instruments.