Cross fingering for Bb

Has anyone got any x fingering suggestions to get a Bb on a conert d wide bore chanter?

It depends on your chanter and reed. My Rogge can get this note with a closed F# fingering plus the Cnat key. some chanters get this note with everything closed and just the Cnat key

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You don’t say which octave, but you could try the fingering chart ( examples in both octaves) on www.howardmusic.co.uk .This is for Brians chanters but it would be interesting to see how they work on others.Good luck.