Piano pedal - horizontal alignment

[Mark Stephen Mrotek]

Hello,

 

In a piano score the \sustainOn, \sustainOff symbols are generally in a horizontal line, i.e., same distance below the bass staff. In some instances the symbol is higher or lower depending on the vertical position of the note to which it is attached.

 

How do I get them all on the same horizontal line?

This issue is more aesthetic than practical.

 

Thank you for your kind attention.

 

Mark Stephen Mrotek