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When machines write our music
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MACHINES are already taking our jobs, will they soon be writing our music too?
Swiss researchers said on Thursday they have developed a computer algorithm that can generate brand-new tunes in different musical genres.
The deep artificial composer, or DAC, “can produce complete melodies, with a beginning and an end, that are completely original,” said co-developer Florian Colombo of the EPFL research university in Lausanne, Switzerland. And the melodies are “quite agreeable to listen to,” he said.
The DAC programme uses a form of artificial intelligence known as “deep learning” that works in a similar way to the human brain in memorising experiences and learning from them.
It is a fast-growing field, with more and more possibilities opening up as computers grow stronger and databases larger.
The DAC system is trained to “listen” to existing tunes to learn what works and what does not.
It teaches itself to predict the pitch and duration of every note following another.
Once it is accurate at predicting 50 percent of note pitches and 80 percent of note durations in existing songs, the machine’s training is complete.
Then starts the creation.
“The deep artificial composer builds a string of notes from beginning to end, including the very first note,” said an EPFL statement.
It picks a follow-up note for each note played, based on the range of probabilities it memorised.
But the programme is taught not to pick the single-most probable note — rather one of the many between least and most probable.
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