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Lots of great answers here! I think one of the most effective methods is the ascending pitch, as mentioned by several others. the reason this works so well, is that it targets a very primal reaction in us. Humans naturally/instictively try to sync ourselves with our surroundings, and this can bee seen in almost every area of our lives. We cry when others do,...


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While it's safe to say that most minor scales sound sad opposed to major ones who appear to have a happier quality to them - both major and minor share the same notes (as in A minor scale is the same as C major). Most music has a more complex musical structure and even has foley and sounds integrated nowadays so a mood detection algorithm should be pretty ...


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The concept of rising sounds has been described in many answers, but one thing is missing: I have been using the idea of the Shepard–Risset glissando very successfully to create and (not to forget) to keep the tension. It's a rising sound, that never stops rising. http://en.wikipedia.org/wiki/Shepard_tone Either you create a rising Shepard–Risset glissando ...


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It won't be one property that will tell you the mood of a song. It will be an amalgamation of things. So I'm not saying each of these will 100% tell you the mood of the song. But they may, in part, give an indication. key signature chords present (amount of minor/major chords relitive/ratio) chord changes present (amount/which chords are they?) known chord ...


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