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
Click the framed calligraphic Chinese symbol icons
to link more related multi-character Chinese words!

lē, lé, lě, lè

fourth tune

lè

happy; happiness 樂 lè

happy forever eternal happiness 永樂 yǒng lè
forever; eternal 永 yǒng	happy; happiness 樂 lè

happy; joyful; cheerful 快樂 kuài lè
gratified 快 kuài	happy 樂 lè

Chinese characters also pronunced lè

light tune

le

past tense marker 了 le

I am ready I am done (have finished doing something) 我好了 wǒ hǎo le
I 我 wǒ	good; done 好 hǎo	past tense marker 了 le