As mentioned in the previous section, the accentual phrase in Tokyo
Japanese is delimited by two tones: the H- phrasal tone and a final
L% boundary tone. The L% boundary tone is marked in J_ToBI at the
right edge of the accentual phrase (see also break index 2 in
section 4.3). This L% tone label is aligned with the word and
break index labels, and is marked at the end of every accentual
phrase, even if there is an additional rise due to a H% or HL%
boundary tone (see sections 3.3.3 and 3.3.4
for descriptions of these tones). Example utterance
kazumi
and others later in this paper show
the marking of a L% before the rise to the H%. Example utterances
sankaku
and
yane
show the L% boundary tone on utterance
final accentual phrases with no rise.
If the immediately following phrase (with no intervening pause) is
initially accented, or begins with a long syllable, a wL% (``weak''
low) boundary tone is used instead of the L% (``strong'' low) tone.
In such cases, the L% does not have enough time to be realized fully
due to the immediately following high tone, and is undershot,
resulting in a weak low (wL%). The utterance
sankaku
contains two wL% boundary tones
marking the edges of the accentual phrases /sa'Nkaku no/
`triangle-GEN' (occurring before the initially accented word /ya'ne/
`roof'), and /ya'ne no/ `roof-GEN' (occurring before a word with a
long first syllable /maNnaka/ `middle'). Example
yane
also has a wL% boundary tone marking
the edge of the first phrase before the initially accented word
/ma'do/ `window'.