Blue Monday

Challenge

Those who came before me lived through their vocations From the past until completion, they’ll turn away no more And still I find it so hard to say what I need to say But I’m quite sure that you’ll tell me just how I should feel today.

Solution

The attached file was a MIDI file. When imported into Audacity, it displays:

We notice that the number of keys between the first note and the second note is exactly the difference between I and c in ASCII, so we work out the rest as well:

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