Obviously it all depends on where a person is in their progress.
Right now, I'm getting a lot of value from "transcription" practice material.
I'm not a good transcriber (pretty rubbish ears) and having a few clear examples with well defined progressions behind and backings in a few keys ; is great training, good for development and fulfilling as it's actually playing music.
There are some great examples, YouTube and paid-for; but, I reckon, plenty of space in the market...
Right now, I'm getting a lot of value from "transcription" practice material.
I'm not a good transcriber (pretty rubbish ears) and having a few clear examples with well defined progressions behind and backings in a few keys ; is great training, good for development and fulfilling as it's actually playing music.
There are some great examples, YouTube and paid-for; but, I reckon, plenty of space in the market...