A very common question we get asked about our range of Chord KC Keyboard covers is "Will Cover X fit my Keyboard Y?"
Generally, it's a safe bet to go with how the covers are titled note wise - so for a full sized 88 note keyboard, the Chord KC8 88 Note Keyboard Cover is where you're looking.
With the 76 and 61 note keyboards, the bags come in standard and in large sizes. This is to allow for the slightly older or larger 'arranger' keyboards which have more buttons and functions. As a rule of thumb if your keyboard is deeper than 30cm/12" you'll need the Large cover.
For example - the Yamaha YPT-220 would use the KC4 61 Note Keyboard Cover, whereas the Yamaha PSRS-650 would use the KC5 Large 61 Note Keyboard Cover.
In 76 note keyboards, the Yamaha NP31 would use the KC6 76 Note Keyboard Cover, but the Casio WK-7600 would need the KC7 Large 76 Note Keyboard Cover.
It's by no means an exact science however, so if you're at all unsure please contact out Sales Team with the measurements of your keyboard.