lute
琶 refers specifically to a lute, a stringed musical instrument. It appears almost exclusively in the compound 琵琶 (biwa), the Japanese lute.
琶 is a phono-semantic compound: 玨 (two pieces of jade, suggesting a stringed instrument) provides the meaning, while 巴 (originally a pictograph of a person bending, later used phonetically) contributes the sound. The character was created to represent the biwa lute.
The top 玨 looks like two jade pieces strung together, like the strings of a lute. The bottom 巴 resembles a curved body, like the rounded back of a lute. Together they form 琶, the lute.
For ハ, imagine a lute player laughing 'Ha!' as they pluck a perfect note: Ha -> ハ.
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Lake Biwa; Biwako
biwa (Japanese lute)
Heike biwa; Heike lute; biwa with 4 strings and 5 frets, esp. for accompanying the Heike Monogatari
large 4-stringed biwa used in gagaku
biwa (4 or 5-stringed Oriental lute)
lute priest; minstrel; blind travelling biwa player dressed like a Buddhist monk
Lake Biwa catfish (Silurus biwaensis)
biwa-bokuboku; yōkai in the shape of a Buddhist priest with the head of a biwa
Edo-period mouth harp (with a hairpin-like frame and a long straight tongue)
biwa song
Biwa oily gudgeon (Sarcocheilichthys variegatus microoculus)
biwa trout (Oncorhynchus masou rhodurus); biwa salmon
Satsuma biwa; Satsuma lute