Found this one by accident this afternoon, thought I’d share.
Running Linux? Is there a song you like?

Google the song in Google Video; who cares what the homebrew video is, just go looking for good audio.
Pull the movie up in Firefox; when the movie finishes buffering, do :

ls -lh /tmp/Flash*

.. and copy the newest file somewhere else, say yer desktop. Now you have a copy of the video.

We just want the audio, so using ffmpeg (sudo apt-get install ffmpeg if you don’t have it), do:

ffmpeg -i [Flash File] [song name] .mp3

And that’s it; one MP3. Use your favourite id3 tool to add tags, and enjoy!

Forgot the name of your favourite tune? Then just sing to your computer and let it download the song for you.

Australian computer scientist Dr Sandra Uitdenbogerd from RMIT University says retrieving music by singing will be possible with one of the next generation of search programs.

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