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Thomastik RO21 Rondo Viola 'A' String 4/4


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    Thomastik Rondo for Viola

    Available Sizes | Gauges

     4/4 | medium

    Strings that can be played effortlessly and feature outstanding tuning stability are the optimal tool for long concerts with several encores. RONDO® for viola NO.RO200 offers exactly this, making it the ideal choice for professional musicians. Alongside a clear, warm sound, the set is powerful with a strong projection and modulation capacity.

    RONDO® for viola NO.RO200 – an overview of the highlights:

    • Wide dynamic range: from ppp to ff
    • Prominent projection and modulation capacity
    • Clear, warm and full sound with pronounced overtones
    • Effortlessly playable for chamber and orchestra musicians as well as soloists
    • Broad, warm sound on the lower strings, focus and brilliance on the upper strings
    • Excellent corrosion resistance and long tonal and mechanical lifespan
    • Good bow response


    RONDO® viola strings combine very nicely with PETER INFELD® strings.

    with RONDO® NO.RO23 + NO.RO24

    This combination enhances the set’s voluminous, broad character and tonal warmth.

    RONDO® NO.RO21 + NO.RO22
    with PETER INFELD® NO.PI23 + NO.PI24

    This combination enhances the set’s focused sound and direct bow response.

    Click here to download the Thomastik guide / glossary of terms


    Viola 4/4 vibrating string length 37.0cm | 14.6"

    NR. Core Material Outer Material Tailpiece End   kg lb Peg End
    DTRO21 a¹ la¹ I Carbon Steel Chrome Wound Al. RB              8.3 18.3           
    DTRO22 d¹ re¹ II Synthetic Core Chrome Wound Al. B              6.1 13.5           
    DTRO23 g sol III Synthetic Core Chrome Wound Al. B              5.6 12.3           
    DTRO24 c do IV Synthetic Core Tungsten/ Silver Wound Al. B              5.4 11.9           
    SET NR. DTRO200                  

    DTRO21; DTRO22;
    DTRO23; DTRO24

    MEDIUM 25.4 kg | 56 lb                  


    Click here to download the Thomastik guide / glossary of terms

    Download the full comprehensive Thomastik catalogue

    Shipping Policy


    Direct to Consumer Delivery Policy

    What GIG Guitars Does:

    • GIG Guitars will process an item for a direct to consumer order. This can be shipped to a business or residential address using either Australia Post E-Parcel or StarTrack Express or collected by a courier selected by GIG Guitars on behalf of the Purchaser.
    • GIG Guitars will provide the Consignment details to the nominated email address.

    What we don’t do

    GIG Guitars takes no responsibility for lost or stolen goods.

    Australia Post and Star Track Express have their own policy regarding this procedure. We recommend you visit their websites at for a better understanding of their proof of delivery policy.

    • As GIG Guitars are delivering on behalf of the purchaser, insurance of the goods is the responsibility of the purchaser. If any goods are damaged in transit, the store takes no responsible for the item and all logistics of return and it’s cost of re-supply.

    If you require GIG Guitars to insure the goods on your behalf, please request this on the Purchase order for each Direct Ship order.

    An additional insurance charge will be applied to the invoice.

    • All goods lost or stolen, after being left at the consumer’s premises, is not the responsibility of GIG Guitars.
    • GIG Guitars will not be responsible for following up delivery details, or any delivery discrepancies, this is the responsibility of you, the purchaser. We will only provide a consignment tracking info.

    Details of your parcel can then be viewed on the Courier Website, using the Consignment number provided by GIG Guitars. If the matter cannot be resolved easily by tracking the Consignment Number from the relevant tracking Websites, GIG Guitars will endeavor to resolve it.

    Return Policy

    Conditions of Returns

    Returnable items are subject to the following…

    The product is faulty

    The product is not the same product that was ordered

    The product does not perform to the Manufacturers specifications

    The product has been damaged in transit (please take note of all parcels immediately upon receiving from postage or courier and where possible take a photo of damage)

    Items must be returned within 14 days

    Items must be returned with original packaging and supplied accessories (ie; power supply, manuals)

    Items must be returned as new, and free of scratches or marks

    A copy of original receipt must accompany your return

    You must contact the store before sending back any items

    Returns may not be granted for products such as Print Music (due to Copyright Laws), Kazoos, Tin Whistles, Recorders (due to hygiene reasons)

    Returns will not be granted due to a customer’s change of mind, or ordering the wrong product.

    All faulty items will be directed back to suppliers for warranty assessment. This is no guarantee that a product will be replaced, repaired or refunded.

    Contact Us

    Contact Us


    Call Rico on 0488200801

    Thomastik RO21 Rondo Viola &