Actually, I believe the transcription required by the ABRSM is only 2 short pages long. And, it is
very nice and very doable. Make sure you get the one specified by ABRSM as it is the only one allowed for the exam.
Sure it would also be great if you can develop yourself to be a jazz improviser, etc. but that is not what the regular ABRSM practical piano exam is about.
If you like Jazz-style music, this can be a great piece not only for your Grade 7 exam but also for your personal repertoire (much more interesting to have this one in your fingers if someone asks you to play something on the piano in future compared to the Wally Wallowstick or whatever it is called).
You might want to consider the following:
- listen to various recordings of Evans' Time Remembered (ABRSM recording, other piano versions, orchestrated, live jam sessions, etc.) to hear a variety of ideas and to get the feel down;
- watch Bill play Time Remembered excerpt on youtube here:
http://www.billevanswebpages.com/- go through the piece really focusing on the great chords that come up; spend time reviewing the chord symbols and the actual notes and describe for yourself the voicing decisions that were made, play around and experiment with the chords: compare a direct, all-note approach to one where you merely hint at impressions of the chords;
- take the time to really analyse, count out and clap the rhythms (particularly on the second page) so you get the swing feel and 2 against 3 right;
- play around with your physical technique (lighter or more vertical in places?) to get another sound than you would get using a classical touch (particularly in places like bar 2); revel in those great chords you have in your head; pedal with your ear
- if you don't usually memorize your pieces, consider memorizing this one so you can really focus on making it swing and sing when you play;
- remember it is "a slow ballad, freely and expressively"; take the time to let the piece mature in your hands and stretch and form it to make it your expression.