horizontal spacing questions

[Luca Rossi]

Hi.

Given these three bars:

{c c c c | c c c c | c c c c}

with the following output:

o    o    o    o    |     o    o    o    o    |    o    o    o    o

                         --measureLength---


1) I would like to change the notes' spacing inside the second bar in  this way:

o    o    o    o    |         o o o o         |    o    o    o    o
                        --pad--           --pad--
                        --measureLength---

where pad = measureLength/3 and measureLength remains the same.


2) I would like to change the notes' spacing inside the second bar in  this other way:

o    o    o    o    |    o o o            o    |    o    o    o    o
                             A B C           D
                         --measureLength---

where A and D (=notes) have their normal position, while  B C form a group with A which is proportionally "compressed" with a given scale factor. And measure length remains the same.


Which is the easiest solution for both problems?
Thanks,
Luca