Some custom iTunes shortcuts: show current track and toggle volume adjustment

I couldn't find any "native" iTunes way to do this and I thought this could help other people.

My goals:

1. See some info on what's currently playing (singer name, song name...) from (mostly) anywhere.
2. Change the volume adjustment of the current song from (mostly) anywhere. 

So I created some AppleScripts and Services using Automator and assigned keyboard shortcuts to them. 

The solutions:

1.  Create a pop-up notification when keyboard shortcut is pressed.
• AppleScript:
  
  
  to openInfo(name, num, artist, album, played, volume)

  display notification "" & artist & " (" & album & ")" subtitle "" & num & ": " & name & "(vol " & volume & ")"

  
  
  end openInfo
  
  
  tell application "iTunes"

  set sel to current track

  
  

  my openInfo(name of sel, track number of sel, artist of sel, album of sel, track count of sel, volume adjustment of sel)

  
  
  end tell
  
• Service receives "no input" in "any application", run AppleScript:
  
  
  on run {input, parameters}

  set sAlias to "/Users/fcarasso/Apps/ShowCurrentItunesTrack.scpt"

  
  

  run script sAlias

  
  
  end run
• My shortcut: command-F13
  
2.  Toggle volume adjustment then show current and previous adjustment as a pop-up notification when keyboard shortcut is pressed.
• AppleScript:
  
  
  tell application "iTunes"

  set toggles to {-50, -25, 0, 100, -50}

  
  

  set adj to volume adjustment of current track

  
  

  set newAdj to "not done"

  
  

  repeat with i from 1 to count toggles

  
  

  set low to toggles's item i

  
  

  set high to toggles's item (i + 1)

  
  

  if adj is low or (adj ≥ low and adj < high) then

  
  

  set (volume adjustment of current track) to (toggles's item (i + 1))

  
  

  set newAdj to volume adjustment of current track

  
  

  exit repeat

  
  

  end if

  
  

  end repeat

  
  

  display notification "New volume adjustement: " & newAdj & " (from " & adj & ")"

  
  
  end tell
• Service receives "no input" in "any application", run AppleScript:
  
  
  on run {input, parameters}

  set scAlias to "/Users/fcarasso/Apps/ToggleVolumeAdjustment.scpt"

  
  

  run script scAlias

  
  

  return input

  
  
  end run
   
• My shortcut: command-F14

The only time this seems to fail is when the focus is on Finder. Not ideal, but I can live with that.