Consider a simple example of four beats in a 4/4 bar. The displacement of each quarter-note from the beginning of the bar is 0, 1, 2, 3 If you're counting in eighth-notes in 4/4, the displacement of each quarter-note is 0, 2, 4, 6 * If you consider the same four beats in 12/8, counting in eighth-notes, their displacements are 0, 3, 6, 9 * Comparing these last two examples, you see that in order to transform the 4/4 Beat Three, say, (which has the displacement of four eighth-notes in the 4/4 bar) into the 12/8 Beat Three (which has the displacement of 6 eighth-notes in the 12/8 bar), you multiply the 4/4 displacement by one-and-a-half. Getting Logic to do it is simple: In the Transform window, set the Position field to multiply all Note positions by 1.5000. Also, set the Note Lengths to be multiplied by 1.5000. Transform. Now, go back to the Score Editor, change the time sig to 12/8 and set a suitable display quantise. Hope this helps, Roger