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switch signal expression option to -i / --instrument

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Breval Ferrari 2025-05-12 16:15:59 +02:00
parent 56b0e234c7
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doc/cli-design.txt
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@ -2,7 +2,7 @@ A flexible music programming language powered by math.
usage: usage:
blip [play [FILENAME | -c SHEET_MUSIC] [-e EXPR] [-l EXPR] -n NOTE[,...] [-v CHAR=VALUE] | export [FILENAME | -c SHEET_MUSIC] [-e EXPR] [-l EXPR] -n NOTE[,...] [-v CHAR=VALUE] [-f FORMAT] [-o FILENAME] | help [syntax | examples | example <n> | formats]] blip [play [FILENAME | -c SHEET_MUSIC] [-i EXPR] [-l EXPR] -n NOTE[,...] [-v CHAR=VALUE] | export [FILENAME | -c SHEET_MUSIC] [-i EXPR] [-l EXPR] -n NOTE[,...] [-v CHAR=VALUE] [-f FORMAT] [-o FILENAME] | help [syntax | examples | example <n> | formats]]
modes: modes:
@ -13,7 +13,7 @@ modes:
sheet music to read instead of reading a file sheet music to read instead of reading a file
-n NOTE[,...], --notes NOTE[,...] -n NOTE[,...], --notes NOTE[,...]
available notes: a list of comma-separated alphabetical note names available notes: a list of comma-separated alphabetical note names
-e EXPR, --expression EXPR -i EXPR, --instrument EXPR
signal expression (instrument) to generate music samples (you can use the floating-point number t for the current time in seconds, n for the indice of the currently playing note in the list of available notes starting with 0 and N for the number of available notes) [default: "sin(2*PI*(442+442*((n+1)/N))*t)"] signal expression (instrument) to generate music samples (you can use the floating-point number t for the current time in seconds, n for the indice of the currently playing note in the list of available notes starting with 0 and N for the number of available notes) [default: "sin(2*PI*(442+442*((n+1)/N))*t)"]
-l EXPR, --length EXPR -l EXPR, --length EXPR
expression to generate note length in seconds [default: "2^(2-log_2(l))*(60/T)"] expression to generate note length in seconds [default: "2^(2-log_2(l))*(60/T)"]
@ -31,7 +31,7 @@ modes:
sheet music to read instead of reading a file sheet music to read instead of reading a file
-n NOTE[,...], --notes NOTE[,...] -n NOTE[,...], --notes NOTE[,...]
available notes: a list of comma-separated alphabetical note names available notes: a list of comma-separated alphabetical note names
-e EXPR, --expression EXPR -i EXPR, --instrument EXPR
signal expression (instrument) to generate music samples (you can use the floating-point number t for the current time in seconds, n for the indice of the currently playing note in the list of available notes starting with 0 and N for the number of available notes) [default: "sin(2*PI*(442+442*((n+1)/N))*t)"] signal expression (instrument) to generate music samples (you can use the floating-point number t for the current time in seconds, n for the indice of the currently playing note in the list of available notes starting with 0 and N for the number of available notes) [default: "sin(2*PI*(442+442*((n+1)/N))*t)"]
-l EXPR, --length EXPR -l EXPR, --length EXPR
expression to generate note length in seconds [default: "2^(2-log_2(l))*(60/T)"] expression to generate note length in seconds [default: "2^(2-log_2(l))*(60/T)"]
@ -46,7 +46,7 @@ modes:
see "help formats" see "help formats"
-o, --output FILENAME -o, --output FILENAME
output file [default: standard out] output file [default: standard out]
help - help menu help - help menu
syntax syntax
show a help message about expression and sheet music syntax show a help message about expression and sheet music syntax