One point which seems to have been overlooked - the big difference between a Boehm system flute and an Irish wooden flute/fife is the holes...

A keyed flute has padded flaps which cover the holes, whereas the Irish flute is more like a recorder or whistle - the fingers are the 'keys'.

This difference is what enables an Irish flute player to 'bend' the notes, and is well-nigh impossible to mimic successfully on a 'closed hole' Boehm flute.

However... my Yamaha YFL 381H is an hybrid - it has plastic bungs in the fingered keys, which can be removed to convert it into an 'open hole' flute with all the advantages of the Boehm system.

It has a silver head, and a B-foot... which really throws people when I growl a low B from it!