Player HISE

sample
lokey
hikey
lovel
hivel
offset
end
loop_mode it will only support yes / no (?)
loopstart
loopend
tune
pitch_keycenter
volume
group_volume
pan
groupName
key

source: https://github.com/christophhart/HISE/blob/master/hi_sampler/sampler/SfzImporter.h#L47