Musical scale: Difference between revisions
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m ZX Spectrum Basic and Lilypond |
→Tcl: Added implementation |
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{{draft task}} |
{{draft task}} |
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Output 8 notes of the C major natural diatonic music scale (These are the notes C,D,E,F,G,A,B,c or Do, Ra, Me, Fa, So, La, Te, do on the solfa) to the default musical sound device on the system. For the purpose of this task, middle C should be used as the starting note, and crotchet notes should be used. |
Output 8 notes of the C major natural diatonic music scale (These are the notes C,D,E,F,G,A,B,c or Do, Ra, Me, Fa, So, La, Te, do on the solfa) to the default musical sound device on the system. For the purpose of this task, middle C should be used as the starting note, and crotchet notes should be used. |
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=={{header|Lilypond}}== |
=={{header|Lilypond}}== |
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The lilypond tool produces musical score sheets and does not output notes to the sound device. |
The lilypond tool produces musical score sheets and does not output notes to the sound device. |
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<lang lilypond>% Start at middle C |
<lang lilypond>% Start at middle C |
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\relative c' { |
\relative c' { |
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}</lang> |
}</lang> |
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=={{header| |
=={{header|Tcl}}== |
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{{libheader|Snack}} |
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<lang tcl>package require sound |
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# Encapsulate the tone generation |
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set filter [snack::filter generator 1 20000 0.5 sine -1] |
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set sound [snack::sound -rate 22050] |
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proc play {frequency length} { |
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global filter sound |
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$filter configure $frequency |
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$sound play -filter $filter |
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# Need to run event loop; Snack uses it internally |
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after $length {set donePlay 1} |
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vwait donePlay |
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$sound stop |
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} |
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# Major scale up, then down; extra delay at ends of scale |
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set tonicFrequency 261.63; # C4 |
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foreach i {0 2 4 5 7 9 11 12 11 9 7 5 4 2 0} { |
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play [expr {$tonicFrequency*2**($i/12.0)}] [expr {$i%12?250:500}] |
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}</lang> |
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=={{header|ZX Spectrum Basic}}== |
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<lang zxbasic>10 REM Musical scale |
<lang zxbasic>10 REM Musical scale |
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20 LET n=0: REM Start at middle C |
20 LET n=0: REM Start at middle C |
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90 STOP |
90 STOP |
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9000 DATA 2,2,1,2,2,2,1,2:REM WWHWWWH</lang> |
9000 DATA 2,2,1,2,2,2,1,2:REM WWHWWWH</lang> |
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{{omit from|BASIC}} |
{{omit from|BASIC}} |
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{{omit from|Openscad}} |
{{omit from|Openscad}} |
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{{omit from|REXX}} |
{{omit from|REXX}} |
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