FPGA driver buzzer, Verilog language, buzzer music

Verilog-fmq
...........\db
...........\..\digital_piano.db_info
...........\..\digital_piano.eco.cdb
...........\..\digital_piano.sld_design_entry.sci
...........\..\digital_piano_global_asgn_op.abo
...........\..\prev_cmp_digital_piano.asm.qmsg
...........\..\prev_cmp_digital_piano.fit.qmsg
...........\..\prev_cmp_digital_piano.map.qmsg
...........\..\prev_cmp_digital_piano.qmsg
...........\..\prev_cmp_digital_piano.tan.qmsg
...........\digital_piano.asm.rpt
...........\digital_piano.cdf
...........\digital_piano.done
...........\digital_piano.dpf
...........\digital_piano.fit.rpt
...........\digital_piano.fit.smsg
...........\digital_piano.fit.summary
...........\digital_piano.flow.rpt
...........\digital_piano.map.rpt
...........\digital_piano.map.smsg
...........\digital_piano.map.summary
...........\digital_piano.pin
...........\digital_piano.pof
...........\digital_piano.qpf
...........\digital_piano.qsf
...........\digital_piano.qws
...........\digital_piano.sof
...........\digital_piano.tan.rpt
...........\digital_piano.tan.summary
...........\digital_piano.v
...........\digital_piano.v.bak
...........\digital_piano.vhd.bak
...........\digital_piano_assignment_defaults.qdf
...........\incremental_db
...........\..............\README
...........\..............\compiled_partitions
...........\..............\...................\digital_piano.root_partition.cmp.atm
...........\..............\...................\digital_piano.root_partition.cmp.dfp
...........\..............\...................\digital_piano.root_partition.cmp.hdbx
...........\..............\...................\digital_piano.root_partition.cmp.kpt
...........\..............\...................\digital_piano.root_partition.cmp.logdb
...........\..............\...................\digital_piano.root_partition.cmp.rcf
...........\..............\...................\digital_piano.root_partition.map.atm
...........\..............\...................\digital_piano.root_partition.map.dpi
...........\..............\...................\digital_piano.root_partition.map.hdbx
...........\..............\...................\digital_piano.root_partition.map.kpt
...........\pin
...........\...\CORE2-5SD-SLOT1.tcl
...........\...\CORE2-5U-SLOT1.tcl
...........\...\COREC-240U-SLOT1.tcl

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