loppy
https://en.m.wikipedia.org/wiki/Japanese_phonology
Go to the Consonants section. There are lots of useful notes there, and you can also click on the individual consonants for more information, including how to configure your mouth to make the sound. “ch” and “sh” are tɕ and ɕ, “j” is dʑ at the beginning of utterances or after ん and is ʑ after a vowel, “w” is w.
Compare to English under the Phonemes section. “ch” and “sh” are tʃ and ʃ, “j” is dʒ, “w” is w.
Pitch does, but accent placement counts mora but only assigns to syllables. For example, if an accent pattern will put an accent mid-syllable, the accent will move further back to the beginning of the syllable. This is also why accents only occur on the first mora of a long vowel. You can also see this in action in accent placement for compound nouns.
Another good thing to know is that adjacent vowels within the same morpheme (typically one kanji) are part of the same syllable. So 帰る is an accented verb, so the accent goes one mora back from the end like with all accented verbs. But this would put the accent on the え in かえる, and かえ is one syllable here, so in fact the か gets the accent.
Edit: I was looking over my main source[*] for this, and was reminded of one really good example of the role of syllables in accent assignment: genitive の. Nouns can lose their accent if followed by の, and when this occurs is exactly when (1) the noun is at least bisyllabic, and (2) the noun’s accent is on the final syllable. Thus monosyllabic 本 (ほ＼ん) stays accented ほ＼んの, but bisyllabic 日本 (にほ＼ん) becomes unaccented にほんの, and 男 (おとこ＼) becomes unaccented おとこの.
[*] The Handbook of Japanese Linguistics (1999), edited by Natsuko Tsujimura, published by Blackwell Publishers, Ltd.
The stuff about “w” is wrong, but there’s a good reason you would think this. The lip shape for the “w” sound in English and Japanese is different; in English the shape is like English “u”, and in Japanese the shape is like Japanese “u”, but you definitely shouldn’t have an actual “u” sound.
in the same way the English version lets out a bit of air before the W itself.
I think, especially considering your comment about ホワイト howaito, that you’re confusing two things. There are English dialects which have two separate “w”-like sounds, one of which is typically written “wh” and the other “w”. (To my ear, this distinctiln also sounds old-fashioned.) In these dialects, “w” as in “water” and “wood” is pronounced like you would expect, whereas “wh” as in “who” and “what” is pronounced somewhat like an “h” sound followed by just-“w” sound. I don’t think the “wh” sound is used for all instances of “w” in any dialect; in fact, most dialects have just the “w” sound.
BTW to help appreciate the difference, when the Japanese try to emulate the English W sound they add a ho first, as in howaito (white).
This is false, they only do this for “wh” sounds (and maybe not even for all of them). Counterexamples to your claim are easy: ウェイトレス weitoresu = waitress, ワット watto = watt, etc.
This is a strange take. In Japanese it’s literally a consonant cluster [ts], which is to say it’s literally a Japanese “t” followed by a Japanese “s”. The Japanese “t” and “s” are not exactly the same as English, but they’re close enough, and English has the same cluster in, say, the plural “mats” of “mat”.
What “tsunami” breaks in English is not really the sound, but instead just the fact that English doesn’t allow [ts] unless it’s preceeded by a vowel.