Question

which part of harmonium vibrates to produce sound ?​

Answer 1

Answer:

Harmonium, also called Reed Organ, free-reed keyboard instrument that produces sound when wind sent by foot-operated bellows through a pressure-equalizing air reservoir causes metal reeds screwed over slots in metal frames to vibrate through the frames with close tolerance.

Answer 2

Answer:

ᴇxᴘʟᴀɴᴀᴛɪᴏɴ:

ʜᴀʀᴍᴏɴɪᴜᴍ, ᴀʟꜱᴏ ᴄᴀʟʟᴇᴅ ʀᴇᴇᴅ ᴏʀɢᴀɴ, ꜰʀᴇᴇ-ʀᴇᴇᴅ ᴋᴇʏʙᴏᴀʀᴅ ɪɴꜱᴛʀᴜᴍᴇɴᴛ ᴛʜᴀᴛ ᴘʀᴏᴅᴜᴄᴇꜱ ꜱᴏᴜɴᴅ ᴡʜᴇɴ ᴡɪɴᴅ ꜱᴇɴᴛ ʙʏ ꜰᴏᴏᴛ-ᴏᴘᴇʀᴀᴛᴇᴅ ʙᴇʟʟᴏᴡꜱ ᴛʜʀᴏᴜɢʜ ᴀ ᴘʀᴇꜱꜱᴜʀᴇ-ᴇQᴜᴀʟɪᴢɪɴɢ ᴀɪʀ ʀᴇꜱᴇʀᴠᴏɪʀ ᴄᴀᴜꜱᴇꜱ ᴍᴇᴛᴀʟ ʀᴇᴇᴅꜱ ꜱᴄʀᴇᴡᴇᴅ ᴏᴠᴇʀ ꜱʟᴏᴛꜱ ɪɴ ᴍᴇᴛᴀʟ ꜰʀᴀᴍᴇꜱ ᴛᴏ ᴠɪʙʀᴀᴛᴇ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ꜰʀᴀᴍᴇꜱ ᴡɪᴛʜ ᴄʟᴏꜱᴇ ᴛᴏʟᴇʀᴀɴᴄᴇ.ꜱᴇᴘ 24, 2019

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