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<p>This experiment will consist of 28 short melodies presented in two
blocks. The first block contains 2 practice trials for you to
familiarise yourself with the programme. After the practice block, you
will be able to adjust the volume to a comfortable level and ask any
questions you may have. The main part of the experiment will follow on
from the pracice block.</p>

<p>When each melody starts playing, a cross will appear in the centre
of the screen. You should focus on this cross while listening to the
melody.</p>

<p>Whilst listening to each melody, you will be prompted to judge how
expected or unexpected you find a given note. Shortly before such
notes, the cross will be replaced by a clock with a minute hand at 12
O'Clock. The hand will count down in time with the music. The note
whose onset coincides with the hand returning to 12 O'Clock is the one
you should respond to. </p>

<p>You should judge how expected or unexpected you find a given note
in the preceding context of the melody using a scale of 1 (highly
unexpected) to 7 (highly expected). Please try to use the full range
of the scale.</p>

<p>The music will continue to play, so try to respond as quickly as
possible, however accuracy is more vital than speed. There is only one
chance to make your decision, once selected it cannot be
changed. Before making your judgement, try to keep the mouse pointer
in the midrange of the scale (i.e., 4).</p>

<p>After listening to each melody, you will be required to answer some
short questions relating to the music before listening to the next
piece.</p>

<p>If you have any questions please ask now. Otherwise, press
'Continue' to move directly to the practice block</p>

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author	Marcus Pearce <m.pearce@gold.ac.uk>
date	Thu, 25 Nov 2010 11:10:53 +0000
parents
children	e2242b4b0b3d