16 APR 2018 by ideonexus

## Pianos Make Music Accessible Like Computers Make Math Acc...

Though it has become a naturalized part of music-making since the first one was built in 1710, the pianoforte (its name means "soft-loud") was a technical marvel for its time, a machine that changed music in ways that are hard to imagine. Computer pioneer Alan Kay once observed that any technological advance is "technology only for people who are born before it was invented,' and in the case of the piano, this applies to no one alive today. Seymour Papert, the MIT researcher, concluded, "That...
1  1  notes

05 FEB 2016 by ideonexus

## 12 Tone Equal Temperament

On a standard piano keyboard, one octave is divided into 7 whole tones: A, B, C, D, E, F and G. In between these tones are 5 further notes which can be called either sharps or flats: A# (Bb), C# (Db), D# (Eb), F# (Gb), G# (Ab). (whether it's a sharp of a flat doesn't really matter, the note has the same frequency, just a different name). This gives us a grand total of 12 notes in one octave. If you were to measure the frequency of a note, then measure the frequency of a note exactly one octa...
Folksonomies: mathematics music
Folksonomies: mathematics music
1  1  notes

07 NOV 2013 by ideonexus

## Fourier Transformations

So what was Fourier’s discovery, and why is it useful? Imagine playing a note on a piano. When you press the piano key, a hammer strikes a string that vibrates to and fro at a certain fixed rate (440 times a second for the A note). As the string vibrates, the air molecules around it bounce to and fro, creating a wave of jiggling air molecules that we call sound. If you could watch the air carry out this periodic dance, you’d discover a smooth, undulating, endlessly repeating curve that’...
Folksonomies: mathematics
Folksonomies: mathematics

It's like prism that breaks apart the components of a sound wave or image into it's smaller parts.

24 JUL 2011 by ideonexus

## Mozart and Intelligence

One of the more startling findings about early enrichment is the effect of music. You can hardly pick up a newspaper without seeing some kind of reference to how Mozart makes people smarter. The governor of Georgia recently proposed spending \$105,000 of state money to provide every newborn baby with a compact disc of classical music, citing its positive effects on brain development and spatial and mathematical skills. What is it about classical music that is so good for mental function, and a...

Why we suspect playing Mozart for infants will make them more intelligent.