Hi Peter & Adam, It's only been a week & not a lot of time has been found to dig in. Basically what I have been doing is searching for the critical gaps in my jazz piano education. What I have found so far is pretty impressive hence the 5-star rating. One of my weak points is not having a lot of tunes memorised. (Aussie spelling) I'd like to get to a point where I can confidently hear correct changes (not the real book ones) and play them by ear. Remembering melody is fine and finding the harmonic progression is getting better but needs improvement. Are there any lessons designed specifically to address mastering hearing the changes? Bill Elliott, Sydney, Australia