 There are a wide variety of tape recorders in existence, from small hand-held devices to large multitrack machines.A machine with built-in speakers and audio power amplification to drive them is usually called a "tape recorder" or – if it has no record functionality – a "tape player", while one that requires external amplification for playback is usually called a "tape deck" (regardless of whether it can record).Multitrack technology enabled the development of modern art music and one such artist, Brian Eno, described the tape recorder as "an automatic musical collage device".