What’s “Instrument info file”?
Instrument info file is a file that exported from your Yamaha keyboard via USB port. The instrument info file with a serial number of your keyboard (has been encrypted). It’s imported to YEM (Yamaha Expansion Manager software) to combine/merge multi-pack.
When you buy our Voice Expansion Pack (ex: Dance-Pop Pack, Dance PSM Pack 1…) and make a payment. Then you have to export the instrument info file and send it to us.
When we are received your instrument info file, within 24 hours, we will send you a download link with your pack that you purchased.
You can follow this video to export the instrument info file from Yamaha PSR S970 & PSR S770