How to Care for Your Harmonium

1. Unboxing after international shipping

Your harmonium has travelled from India and may have passed through very different temperatures on the way.

1. Let it acclimatise. Leave the box unopened indoors for several hours, longer if it arrived in freezing or very hot weather. Opening a cold instrument in a warm room can cause condensation on the reeds.
2. Unpack carefully. Remove all packing material, including any blocks or tape around the bellows or keyboard.
3. Check every key and stop. Pull each stop and play every key. If a note is silent or a key sticks, contact us before trying to repair it.
4. Keep the original packaging. Our returns policy asks you to keep it if you may want to return the item.

2. Humidity: the number-one factor

Harmoniums are made of wood, leather or cloth, glue and brass. Wood swells in humid air and shrinks in dry air. Too much movement can: – make keys stick or become loose – open small cracks or air leaks in the cabinet and bellows – affect reed response

Aim for a stable indoor humidity of about 40–60%. A cheap digital hygrometer tells you where you stand.

In dry climates and heated homes (Canada, northern US, Central Europe in winter, the Gulf with AC)

• Keep the harmonium away from radiators, heating vents, baseboard heaters, wood stoves and AC outlets.
• Use a room humidifier in winter if humidity drops below about 35%.
• Never store it in direct sun near a window.

In humid climates (Florida, Queensland, monsoon seasons, damp UK homes)

• Don’t store it against an outside wall or on a cold floor in a damp room.
• Use a dehumidifier or AC in very humid weather.
• Play regularly. Moving air through the reeds and bellows helps keep moisture from settling.
• A small silica-gel pack in the storage bag can help. Replace or dry it regularly.

3. Heat and sunlight

Heat softens the glues and waxes that hold reeds and seal the bellows, and can warp wood. Never leave a harmonium in a parked car, especially in Australian, Gulf or American summers. In the sun, cabin temperatures can rise far above the outside temperature within minutes.

4. Dust: the silent reed killer

A speck of dust caught in a reed is the most common reason a single note goes silent or buzzes. To prevent it: – Keep the harmonium covered or in its bag when not playing. – Close the stops when you finish playing. – Don’t eat or burn incense directly over the instrument (ash and crumbs find their way inside). – In dusty, desert climates, cover it every time.

If a note goes silent or buzzes: often, pumping firmly and pressing the key repeatedly will dislodge the dust. If it doesn’t, the reed may need cleaning by someone with experience. Reed blocks are delicate, and a bent reed tongue changes the tuning.

5. Bellows care

The bellows are the lungs of the harmonium. – Pump smoothly and steadily. Don’t slam the bellows fully open or closed. – Always fasten the bellows strap or latch when you finish playing or carry the instrument. Folding traveler models fold the bellows inside the cabinet; follow the folding steps on the product page. – Check for leaks: close all stops, pump the bellows full and see how long they stay inflated. A slow, gradual fall is normal. A rapid collapse or audible hiss suggests a leak. – Keep the bellows away from sharp objects and pets.

6. Keys

• Play with clean, dry hands. Hand oils and lotions build up on keys.
• Wipe the keys with a soft, slightly damp (not wet) cloth, then dry immediately.
• Never use household cleaners, alcohol or solvents on keys or the cabinet finish.
• If a key sticks in humid weather, wait for drier conditions before you try forcing it. It often frees itself as the wood settles.

7. Cabinet and finish

• Dust with a soft, dry microfibre cloth.
• Avoid spray polishes. They can seep into the keyboard and reed chambers.
• For teak, mahogany-colour, oak-finish or white cabinets, a dry cloth is all you need for routine care.

8. Tuning

RagaLoom harmoniums are supplied tuned to A=440 Hz as standard (many listings also offer 432 Hz by request). Brass reeds are very stable, and a harmonium generally holds its tuning for years with normal use. Gradual drift can happen over a long time, or after extreme temperature or humidity changes.

• Don’t attempt reed filing yourself. Tuning a harmonium involves scraping or filing individual reed tongues, and mistakes are permanent.
• If you notice a note is clearly out of tune, check with a tuner app at 440 Hz and contact a harmonium technician.

9. Storage

Short-term (between practice sessions): Close the stops, fasten the bellows, cover or bag the instrument, and store it flat on a table or shelf, never on its side or upright on the bellows.

Long-term (weeks or months): – Store it in its bag in a room with stable temperature and humidity: not a garage, loft, basement or shed. – Lay it flat with nothing heavy on top. – If possible, play it for a few minutes every couple of weeks to keep the bellows supple and air moving through the reeds.

10. Travelling with your harmonium

Folding and mini models from our Travel Harmoniums collection are designed for travel, but they still need care: – Use the padded gig bag supplied with most models. For flights, a hard case gives better protection. – Fold or latch correctly before you move the instrument. – Carry it level, keyboard side up. – Check your airline’s cabin-baggage size and weight limits before flying. Policies vary by carrier. – Avoid leaving it in luggage holds, car boots or tour vans in extreme heat or cold for long periods. – After a journey, let it acclimatise before playing.

11. Simple maintenance calendar

12. Caring for shruti boxes too

Almost everything here applies to shruti boxes: the same brass reeds, the same bellows, the same enemies (heat, humidity, dust). Close all note controls after use, fasten the bellows strap and store the box flat in its bag.

Shipping and returns

RagaLoom ships worldwide by FedEx/DHL. Shipping is a base rate for your country plus $25 per item, and customs duties and import taxes are paid by the buyer. See our shipping & customs page and returns policy.

Related guides and pages

• Which Harmonium Is Best?: compare models before you buy.
• Buy a Harmonium in Europe: shipping to European countries.
• How Does a Shruti Box Work?: bellows, reeds and notes explained.