The following video demonstrates each syllable of the pinyin structure
and the exercise of pinyin/zhuyin with basic Chinese 4-tune pronunciation

Mandarin pinyin tunes
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hā, há, hǎ, hà

first tune

hā

laughter; crazy about 哈 hā

ha-ha laughter 哈哈笑 hā hā xiào
ha 哈 hā	ha 哈 hā	laugh 笑 xiào

Japanophile 哈日族 hā rì zú
crazy about 哈 hā	Janan; sun 日 rì	group of people 族 zú

Chinese characters also pronunced hā

second tune

há

clam; toad 蛤 há

toad 蛤蟆 há ma
toad 蛤 há	toad 蟆 ma