@Breastfeedingworries I hear you but 100% rest assured a huge amount can change in that time. All your little one needs at this age is love, love and more love. Fun play, songs and rhymes, outdoors play, nature, you talking to them, travel where you can, chat to each and everyone all walks of life, read them lots of books and play a bit of music by all means and let them create and explore as they need to. Lots of exposure for all senses. I remember being told that 5 is a good age to introduce an instrument if they love music, but any earlier is just a bit much.
You might think a your child is capable of a scholarship or academic all the way up to the applicable age (as I did and have to keep reminding myself), but it then turns out that actually that isn’t the case. The reality is very different and easy to find oneself surrounded by a cohort of very bright and able children and the competition super tough esp if one’s child has not been to a prep school. Yet saying that, I know many who finish state school primary - well rounded and naturally able with very minimal tutor input - and they make the mark and several gaining scholarships (art / music / academic) at both privates and sought after states.
But ultimately you want a happy child and a right fit for your child and to let them enjoy the learning and process along the way so that they can be a happier person in the future.
If you are unable to afford the schooling later, that is what bursaries are for and some of the best schools offer many great options if your child has the academic ability and passes the assessment.
Sorry @SevDem I realise I have moved this away from the original point of your thread which is a great and honest digress. It is a good thing you have aired your views on the musical aptitude for CSG. I expect it has to be that much more rigorous due to the high number of applicants. Yet and unfair selective process if the bar is set so high and uniquely. Each school has their own approach it seems and none of them perfect and important not to be disheartened. I am pleased you have a great first choice and with a sibling there.