Explanation
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iTunes versions
These are commercial recordings that you can purchase and download for
playback on a computer, or iPod
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Amazon versions
These are commercial recordings that you can purchase and download for
playback on a computer, or any mp3 player including iPods. Also
slightly cheaper than iTunes
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Streamed versions
You can also listen to streamed
recordings across the internet from a number of sites, including
last.fm. These are free,legal, but may contain advertisements between
tracks
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Spotify
Similar to Last.fm, though requires a spotify application to be
installed on your PC or Mac . Very easy to use and similar to iTunes in
terms of how it looks. No longer free, with a monthly subscription but
an incredible selection.
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MIDI
versions
There are free MIDI versions of many choral pieces
available on the internet.
MIDI is not a recording format, but a set of instructions that play the
piece on your computer,
rather like a player piano roll. They typically sound like a
synthesiser.
MIDI files contain the notes for each part, so are useful for rehearsal
and personal 'note bashing'.
This wonderful
site by
John Hooper has a very wide repetoire in MIDI for all four parts
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