Trying to add effects / plugins to GarageBand for making a soft instrument sound more like a real santoor. Below are plugins or effects I need you to find for me.
Tremolo on release
Distorting the tone
Shimmer Reverb (note or octave up or down reverb) ~ alchemy ?
Octaver and if possible adjacent notes rather than an octave apart
Drag across strings on down notes ( called glide )
Single note chord ~]
Note repeater ~]. Arpeggiator ~]