Over an opening 1NT or 2NT, 4D is a transfer to hearts and 4H is a transfer to spades. After opener accepts the
transfer, new bids by responder DO NOT imply a new place to play--- the partnership must play in the major except
for 6NT and 7NT (you want the matchpoints...)
Texas Transfers are on after interference.
part opp you
1NT 2D 4H ; this is a transfer to spades