Most manufactures are moving their advanced editing facilities off-board and onto tablets, (Logical has they have bigger and better touch screens) so you may find the T5 will do the same.

Take your keyboard to a pro music shop and have listen to it through some quality speakers as you will be amazed how good it sounds. (Sometimes a little inconvenience can save you a lot of money)

Yamaha and Korg are 2 different types of sound, CD (Yamaha) and Live (Korg) also don’t be deceived by online demos as the pro ones use £1000s of external equipment which is beyond most users.

Forget the Yamaha Tyros speakers as they are a complete total disaster and make it sound like a wind up gramophone. (Hence you won’t find any pro using them)

If your new to arrangers then the Yamaha OS is the easiest to get into whereas the Korg is a pain in the backside, however if you are used to a Korg then you will find the Yamaha OS is very difficult to get into (They are completely diametrically opposed) so try before you buy.

Although it’s a bit more hassle I would still consider adding a laptop and some VSTs via Midi, as the T5 and all arrangers are still years behind the pro market in both quality of sound and editing.

Hope this helps

Bill