Waveform Script problem

Hello,
a have a script to watch the waveform of the sounds played on the performance view.
It works for the first notes from C-2 but after 2 octaves, no more waveforms displayed when a note i played.
I don't understand why i doesn't work
Here is the script, below:

Code:

{example with waveform and cursor at playback}

on init
  make_perfview {enable performance view}
  set_ui_height_px(100) {set performance view height}
  declare $noteid
  declare $selZone {selected zone}
  declare $playpos {playback position var}
  declare $selZoneRAW
 
  declare ui_waveform $my_waveform(2,3) {create waveorm view}
 
end on

on note
  $selZoneRAW := get_event_par($EVENT_ID,$EVENT_PAR_NOTE)
 
  {selected zone / set C2 as zone 0}
  $selZone := $selZoneRAW - 48
  message ($selZone)
 
  {display waveform for selected zone}
  attach_zone ($my_waveform,$selZone,0)
 
  {display playback cursor}
  while ($NOTE_HELD = 1)
    $playpos := get_event_par ($EVENT_ID,$EVENT_PAR_PLAY_POS)
    set_ui_wf_property ($my_waveform,$UI_WF_PROP_PLAY_CURSOR,0,$playpos)
    {message (get_ui_wf_property($my_waveform,$UI_WF_PROP_PLAY_CURSOR,0))}
    message("id zone number:" & $selZoneRAW & " || selected Zone:" & $selZone &...
     " || event id:" & $EVENT_ID & " || note id:" & $EVENT_NOTE)
    wait (10000)
  end while
end on

 

Well that's normal; your script is written to only show the C2 note.

To see appear on all notes, add on init callback:
$selZone := find_zone("your zone name")

 

Thanks Corbo-billy .
I wiil check that tomorrow.