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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juān, juán, juǎn, juàn

first tune

juān

donate; contribute 捐 juān

donate money; contribute money 捐款 juān kuǎn
donate 捐 juān	money 款 kuǎn

Chinese characters also pronunced juān

third tune

juǎn

roll up, a roll curly 捲 juǎn

egg rolls 蛋捲 dàn juǎn
egg 蛋 dàn	roll 捲 juǎn

curly hair; wavy hair 捲髮 juǎn fǎ
curly 捲 juǎn	hair 髮 fǎ

fourth tune

juàn

examination paper; test paper 卷 juàn

test paper; examination paper 考卷 kǎo juàn
test; examination 考 kǎo	paper 卷 juàn

tired; weary 倦 juàn

tired; weary 疲倦 pí juàn
tired 疲 pí	tired; weary 倦 juàn

concern family dependents 眷 juàn

care for; highly favored favored and blessed show concern and solicitude 眷顧 juàn gù
concern 眷 juàn	take care of 顧 gù

family dependents wife and children; one's family 家眷 jiā juàn
family 家 jiā	family dependents 眷 juàn

Chinese characters also pronunced juàn