DS (first born) is nearly 7. He's had problems since starting school with reading and writing - thankfully school picked up on it fairly quickly and he has an individual education plan and already gets half an hour a week one-to-one with a learning support teacher, and some classroom assistant help during the week. However, in order to continue to support him the school need a diagnosis and statement, and he's now been referred by the school to an educational psychologist. I've been warned the waiting list is long, and in the meantime DS's self confidence is getting lower & lower, and he's increasingly frustrated by his own limitations. He has a weak working memory- finds it almost impossible to copy things off the board, and his writing speed is painfully slow. Reading is beginning to improve thanks to the school's intervention but spelling still very difficult. Dyslexia looks likely, but he was also born very premature so possibly some issues from that. Like many similar kids he's pretty bright in other spheres- great long term memory, loves science/nature/facts, pretty good at numeracy, and no physical/coordination issues.
Any advice on how I can support him through this stage would be much appreciated? Much of his homework he finds incredibly frustrating (e.g. constructing ten sentences including five key words) and it can be hard for us both to get through these, and although I do try to emphasise his strengths (e.g. factual knowledge, gymnastics skills etc.) he is very aware of where he sits relative to the skills of his peers (e.g. not able to read the same level books they're on, having to have extra support, etc etc.). I've explained his brain is just wired slightly differently (his younger sister finds learning to read very straightforward, which DS has noticed) and he just has to do things in a different way. He's good at listening but retaining visual patterns etc. almost impossible.
My mum suggested trying to help his mental skills by learning a musical instrument- not sure there's any evidence this could help (may be another source of frustration I can see!) but any similar ideas very welcome? Horrible to see him so sad about classwork and being "different" :(