By Pedro Kroger
Are you curious about studying extra approximately track yet have came upon so much fabric condescending or to offer issues magically rather than logically? the good news is that a lot of song may be understood with programming and math, issues you're already sturdy at! during this ebook you'll examine a few components of tune from a programmer's standpoint. You'll know about the primitives of song corresponding to notes and length, the technique of combining these primitives into causes and chords, operations equivalent to transposition, retrograde, and inversion, and the technique of abstraction (phrases and shape) utilizing Python and a few simple math. each suggestion during this e-book is defined in English with a corresponding implementation in Python, utilizing the Pyknon song library.
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Extra resources for Music for Geeks and Nerds
5 About MIDI e Musical Instrument Digital Interface (MIDI) speciﬁcation was developed in the 1980s to exchange information between keyboard synthesizers. e MIDI ﬁle format is low-level and it doesn’t have the notion of notes, rests, and duration values such as quarter notes. It’s built around messages such as Note On and Note Off. 5. About MIDI 40 Music for Geeks and Nerds A MIDI ﬁle holds information about when a note started and stopped, but it doesn’t know how the music will actually sound in the way a MP3 ﬁle knows.
Unless you’re a frog (you never know), you are probably not going to hear 10 separate notes. When I play this exercise, most people hear from one to three notes, but your mileage may vary. Track 14. Ten notes separated by 1 Hz. We humans can hear notes from 20 to 20,000 Hz (again, disregard this if you’re a frog), therefore we can’t hear low frequencies such as 1 or 2 Hz. But one neat trick is to take advantage of beats, the interference between two sounds with close frequencies. In the next examples we are going to hear two simultaneous notes separated by 1, 2, and 3 Hz.
5 Summary ese are the main points we have seen in the chapter: • Full randomness doesn’t sound good. • Repetition and limitation of primitives create more familiar sounds. • We can replicate the musical process of great music in simple code. • We can generate music using a few operations. • An operation is a function that maps a set of notes to another set. • Traditionally we have operations like transposition, inversion, and retrograde, but you can invent your own. • Operations can be used to create combinations.