A A# B - Wolfram|Alpha
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Supported formats and sample files

Input interpretation:

link to /input/?i=musical+note+A4&lk=1link to /input/?i=musical+note+A%E2%99%AF4&lk=1link to /input/?i=musical+note+B4&lk=1
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Music notation:

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Keyboard display:

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Intervals:

link to /input/?i=musical+note+A4&lk=1link to /input/?i=musical+note+A%E2%99%AF4&lk=1link to /input/?i=1+semitone&lk=1link to /input/?i=1+semitone&lk=1link to /input/?i=musical+note+A%E2%99%AF4&lk=1link to /input/?i=musical+note+B4&lk=1link to /input/?i=1+semitone&lk=1link to /input/?i=1+semitone&lk=1
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Scales containing A, A♯, B (or enharmonics):

link to /input/?i=A+harmonic+Neapolitan+minor+scale&lk=1link to /input/?i=A+harmonic+Neapolitan+minor+scale&lk=1link to /input/?i=A+harmonic+Neapolitan+minor+scale&lk=1link to /input/?i=A+harmonic+Neapolitan+minor+scale&lk=1link to /input/?i=A+harmonic+Neapolitan+minor+scale&lk=1link to /input/?i=A+Neapolitan+minor+mode+scale&lk=1link to /input/?i=A+Neapolitan+minor+mode+scale&lk=1link to /input/?i=A+Neapolitan+minor+mode+scale&lk=1link to /input/?i=A+Neapolitan+minor+mode+scale&lk=1link to /input/?i=A+Neapolitan+minor+mode+scale&lk=1link to /input/?i=A%E2%99%AF+Neapolitan+major+scale&lk=1link to /input/?i=A%E2%99%AF+Neapolitan+major+scale&lk=1link to /input/?i=A%E2%99%AF+Neapolitan+major+scale&lk=1link to /input/?i=A%E2%99%AF+Neapolitan+major+scale&lk=1link to /input/?i=B+utility+minor+scale&lk=1link to /input/?i=B+utility+minor+scale&lk=1link to /input/?i=B+utility+minor+scale&lk=1link to /input/?i=B+utility+minor+scale&lk=1link to /input/?i=E%E2%99%AD+Lydian+minor+scale&lk=1link to /input/?i=E%E2%99%AD+Lydian+minor+scale&lk=1link to /input/?i=E%E2%99%AD+Lydian+minor+scale&lk=1link to /input/?i=E%E2%99%AD+Lydian+minor+scale&lk=1
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Parsons code:

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Pitch-set operations:

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Standard frequencies:

link to /input/?i=musical+note+A4&lk=1link to /input/?i=440+hertz&lk=1link to /input/?i=440+hertz&lk=1link to /input/?i=musical+note+A%E2%99%AF4&lk=1link to /input/?i=466.164+hertz&lk=1link to /input/?i=466.164+hertz&lk=1link to /input/?i=musical+note+B4&lk=1link to /input/?i=493.883+hertz&lk=1link to /input/?i=493.883+hertz&lk=1
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MIDI notes:

link to /input/?i=MIDI+69&lk=1link to /input/?i=MIDI+70&lk=1link to /input/?i=MIDI+71&lk=1
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Download full output as:

CDF  PDF
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