Semi random song play

[Michiel Sovijarvi-Spape]

Hi,
Presumably, there are different, better methods. My first idea is to use a
nested list, colon syntax, and some consideration of the possible different
combinations. No inline code necessary.
1. Create a list. Within there, make a nested list, say "songs", featuring
all the songs you have, using one attribute, say, "Songs". Set the nested
list to randomize. 
2. Within the trial procedure, have 6 slides (or whatever), one after
another, (say slide1, slide2, slide3..slide6) with the sounds (as, i think,
sounddevice sub-objects) playing as you see fit. More importantly, set the
filename of each of the sounds to be [Song1], [Song2], .. [Song6].
3. Again, in the list object (not the nested one), make 6 attributes with
"Song1", "Song2".. "Song6". Enter, in the triallist, the following trials
(one column for each attribute):
[Songs:1] [Songs:2] [Songs:3] [Songs:1] [Songs:2] [Songs:3]
[Songs:1] [Songs:2] [Songs:3] [Songs:1] [Songs:3] [Songs:2]
[Songs:1] [Songs:2] [Songs:3] [Songs:2] [Songs:3] [Songs:1]
[Songs:1] [Songs:2] [Songs:3] [Songs:2] [Songs:1] [Songs:3]
... that's it, works.
You see, WHICH song is the first in the list of songs will be randomised, so
the first 3 songs only need to be different ones. Thus, in trial 1, SOME
song is taken from the full list of songs, that is, the first in the
randomised nested list. The second song will be a different one, and the
third another different one. The only pre-requisite for the fourth song is
that it is either the first or second of the played songs, and so on -
showing that there are, in fact, only 4 combinations possible.

So, may sound like an awkward way of going about these things, but I think
it's actually quite elegant.
Best,
Michiel

-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf
Of Darina
Sent: 04 June 2012 18:13
To: E-Prime
Subject: Semi random song play

Hello, I am new to E-Prime so I do not know much about coding.
I need to play 3 songs twice in random order. However, I need the third and
forth song to be different. How can I do this?

Thank you for any help!

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