Download ableton live 9 power: the comprehensive guide

The Choices parameter determines the number of random values that can occur. If the value is set to 3,
a random number with a value of 1, 2, or 3 will be generated. This number is multiplied by the value
of the Scale knob. The result is the number of semitones the MIDI note will be shifted. So if the Scale
knob is set to 2, the resulting random transpositions will be 2, 4, or 6 semitones. The final variables in
the formula are the Sign buttons. If Add is selected, the resulting random value will be added to the
MIDI note, causing it to move up in pitch. Sub will subtract the random value from the current note.
The Bi setting will randomly choose between adding or subtracting the value. The indicator lights on
the plug-in panel will show when the note is being transposed up or down.
Let’s run some quick examples to make sure you understand the math behind the plug-in.
1. If the Choices knob is set to 1 and the Chance knob is set to 50%, about half the time a
transpose value of 1 will be generated by the Choices knob. If Scale is set to 12 and the Sign
mode is set to Add, the incoming notes will be transposed up one octave half of the time.
2. If the Choices knob is set to 4 and the Chance knob is set to 100%, a transpose value of 1 to 4
will be generated for every MIDI note. You can then set the Scale knob to 3 and leave the Sign
mode on Add. In this situation, every note will be transposed (Chance at 100%) by one of the
following semitone amounts: 3, 6, 9, or 12 (1[Choices]×3[Scale]=3, 2×3=6, 3×3=9, and
4×3=12).
3. If the Choices knob is set to 2, the Scale knob is set to 12, and the Sign mode is set to Sub, the
resulting transposition will be either 1 or 2 octaves down (1×12=12 and 2×12=24).
Above the direction switches is an additional switch for selecting Alternate mode instead of Random
mode. In Alternate mode, the effect will cycle through all of the possible values in order. So, in
example 2 above, the output will be transpositions of 3, 6, 9, 12 in order, repeatedly.
Scale
Scale allows an incoming MIDI note to be mapped to another one. You can tell the plug-in that you
want every incoming D# transposed up to E. You can also tell it that you want incoming Es to be taken
down to Cs. Remapping pitches like this could be a great practical joke on a keyboard player, but it
also has some very practical uses as well.
Don’t play keyboards well? Don’t know your scales? The Scale device will transpose all the wrong
notes you play to the proper pitches for the appropriate key. This mapping is achieved with a 12×13
grid of gray squares that are laid out as piano keyboards. The columns in the grid refer to the input
notes, while the rows refer to output notes.
If you look at Figure 10.6, you’ll see that the bottom-left grid square is on. This means that when a C
note enters the far left column, it runs into the orange indicator in the last row, which is the C output
row. So, in this case, all entering C notes will still exit as C notes. The next column over is the input
column for C# notes. As you look down the column, you run into the indicator light on the third row
from the bottom, which is the output row for D notes. This means that when a C# note enters the Scale
effect, it leaves as a D note.
Figure 10.6 The Scale effect lets you remap MIDI notes using a unique grid interface.