Dr. Christina Fuller has recently completed her PhD work on music and cochlear implants. Part of her research was on providing music training to cochlear-implant users, to explore what hearing benefits different training approaches may provide to this group. This also lead to a wonderful collaboration with the Prins Claus Conservatorium, where Dr. Robert Harris provided a pilot training to a small group of implant users.
These efforts are featured on De Kennis van Nu:
https://dekennisvannu.nl/site/artikel/Muziekles-voor-doven-om-beter-te-kunnen-horen/8675