Open and closed lists
As we have seen, a leading non-fall at the beginning of an utterance leaves us waiting for the fall that will complete the pattern. It thus indicates that the sentence is incomplete. It signals non-finality. Put it another way, a non-fall leaves matters open.
A fall, on the other hand, indicates that the sentence is potentially complete. It tends to signal finality. It suggests that matters are closed.
We see the distinction between the closed fall (= definitive fall) and the open non-fall (= non-final fall-rise or rise) most clearly in the intonation lists:
The fall on tea in (i) signals that there are no more options: you must choose either coffee or tea. The rise on tea in (ii) signals that there maybe other possibilities too, as yet unmentioned, e.g. or you could have an \orange juice.(iv) ⤴Chicken | or ⤴beef?
(vi) We've been to ⤴Manchester, | Edinburgh | and ⤵London.
Although the intonation patterns in these examples are valid, they are not the only way of treating lists. First, we do not have to give each item its own IP: openness of a list can be signalled simply by not yet having reached the nucleus, i.e . by giving the non-final items head accents rather than nuclear accents:
You can have ▸coffee or ⤴tea
▸Chicken or ⤵beef?
▸Chicken or ⤴beef?
▸One, ▸two, ▸three, ▸four, ⤵five.
We've been to ▸Manchester, ▸Edinburgh and ⤵London.
Alternative questions are sets on two or more yes-no questions linked by or. They are treated as lists. A closed list ends in a definitive fall, and in principle an open list (if nuclear) ends in a dependent rise. However, the speaker has some discretion to ignore this rule.
Is that a ⤴gun in your pocket? | Or are you ▸just pleased to ⤵see me?
Is it a ⤴bird? Is it a ⤴plane? (|| ⤵No, | it's ⤵Superman!)
Am I asking ⤴fifty dollars? Or ⤴forty dollars? || ⤵No, it's ▸yours for ⤵twenty!