u/FruRoo

Anyone know what sort of instrument is playing right from the beginning, and at the end, of champagne supernova (and also in the instrumental section after each chorus?) All it says on the personnel list is 'whistle', even though it definitely sounds more like a harmonica in some parts. Am doing a cover of it with a band, and looking to find something to replicate the sound, so if anyone knows what it is/what might be passable would be much appreciated. Cheer