AT89S51 microcontroller-based electronic keyboard, Keil software, to send 21 tones, you can play the music already stored, to select a tone (tone part of the peripheral circuit design), friendly interface

程序源文件\play.c
..........\play.LST
..........\play.OBJ
..........\player
..........\player.hex
..........\player.lnp
..........\player.M51
..........\player.Opt
..........\player.plg
..........\player.Uv2
..........\player_Opt.Bak
..........\player_Uv2.Bak
程序源文件

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