String Instruments & Accessories

New product launches

May 09, 2018

Andrea Sanctus Rosin

ANDREA rosin has been around for over 20 years now. While countless musicians have used and shown their appreciations of its quality, the manufacturers never stopped experimenting and looking for something more unique and fascinating to offer serious musicians.

In 2018, to celebrate its 10th year anniversary, they introduced the new ANDREA SANCTUS ROSIN.

Sanctus is formulated to provide more possibilities in the sound of stringed instruments. This unique combination of two sophisticated rosin formulas provides the optimum balance for sound and bow control. These formulas have been put into two separate areas in one special rosin cake to show the clear definition of their roles. The outer ring formula has been designed to give a silky-smooth playing feel and to produce a focused sound on the strings. The centre formula responds and kicks in when the player demands more power and gutsiness from their instrument. The sound of these formulas when combined is noticeably more focused with enhanced tonal strength. Ultimately, it stimulates your musical mind to explore the endless possibilities in your sound.

How Andrea Sanctus Rosin is made:

About 65% of the ANDREA SANCTUS ROSIN formula contains Hydrogenated Rosin. This rosin is from pine trees, and it goes through the hydrogenation process, causing the rosin molecules to get hydrogenated.

It stays very stable in the high temperature process of ANDREA rosin making and greatly increases the rosin molecule’s resistance to oxidation.

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Outer Part Formula

The Outer part is formulated to find the optimum balance with the centre part formula which physically has softer and stickier characteristics.

The outer parts for violin and viola rosin (light amber colour) is physically harder than the one for cello (dark olive colour) to resist the friction of the bow hair, which ultimately controls the amount of the centre formula applied.

The outer parts are made first in small batches. About 50 of them are made in one round.


The Centre Part Formula

There are 3 different centre parts for violin, viola and cello. They are formulated based on ANDREA SOLO rosin but a lot more concentrated. This is the most challenging part of the whole process in terms of labour, and the temperature needs to be right. If it is too hot, the outer part shatters. If it is too cool, it gets quite messy when pouring.

Heat treatment and cooling process

Because the initial bow contact surface needs to be even in order to get both parts to be broken in, the top surface is treated with heat.

It takes about 3 hours to fully cool down before it gets packaged mainly because the soft centre part takes longer time to cool.


January 16, 2018

The New Larsen Virtuoso for Viola – A Complementary Balance


The New Larsen Virtuoso for Viola – A Complementary Balance – Available soon

If something works then why change it? Since its original launch back in 1995, the Original Larsen Viola A string has become almost the default choice for viola players.

Offering  excellent projection  with  a  broad  spectrum  of  sound  colours  combined  with  a  long  lasting and consistent performance.

With the development of our new Virtuoso Viola strings, launched in January 2018, the focus has been upon creating a new offering for viola D, G and C, built upon the firm foundations of the tried and trusted A string.  Finding a balance of qualities to complement and mutually enhance something old with something new:

‘A golden, open and clear tone with a nice balance of warmth and brilliance.’

The  new  Virtuoso  for  Viola,  available  as  individual  strings  or  as sets  in  Medium and  Soloist  variants,  achieves  that  complementary  balance.  The Medium set delivers a rich sound texture whilst the Soloist is more focused and brings greater volume to the instrument.

Please note: The Original A string, medium is supplied as the ideal partner for both Virtuoso Medium tension and Soloist combinations packaged as sets.

String Details

The Original Viola A string is based upon a solid steel core, wound with precision rolled stainless steel flat wire. The Virtuoso Viola D, G and C strings build upon a synthetic multi-filament core and are wound with pure silver

August 01, 2017

PIRASTRO KorfkerRest

The new Pirastro Korfker shoulder rest is now freely available. It certainly looks very light and comfortable but it remains to be seen how players relate to it! A comfortable playing stance is so important and players often struggle to find the perfect shoulder rest/chin rest combination that gives the ultimate support. Pirastro have come up with a new design which takes on the ever-popular brands by Kun, Mach one, Wolf, and Bon Musica plus many others.

Here is what they say:

“Discover the maximum potential of your instrument while playing with absolute comfort

  • Explore the entire sound spectrum of your violin
  • Feel your instrument respond as it was meant to
  • Experience truly individualised comfort
  • Enjoy the calming reliability of perfect stability

… in the quest for the ultimate shoulder rest system. Every part of these unique and patented designs has been painstakingly tested for sound properties, stability and light weight, resulting in an unmatched freedom of sound, expanded projection, and revolutionary comfort and reliability during performance.”

  • The worlds lightest shoulder rest
  • First shoulder rest using bendable tone wood adjustable to the shape of the shoulder
  • Offers extensive and very precise personal modifications of position, height and tilt
  • Brings out a much wider dynamic range from the instrument
  • Allows a unknown diversity in articulation
  • Finer variations in string contact can be felt
  • Minimal use of rubber improves sound characteristics
  • Designed to complement the timeless beauty of the violin

Pirastro Korfker Violin Shoulder rest top

I’d be glad of any feedback from current users of this shoulder rest?

March 09, 2017

Codabow Marquise GS Violin Bow

Now in stock at Caswells Strings, the new Codabow Marquise GS Violin Bow has years of history behind it!

For nearly 10 years, CodaBow, together with master bowmaker Roger Zabinski, has crafted bespoke carbon-fiber bows for private musicians. Some of these exclusive bows emulated historically revered bows (Tourte, Peccatte, Pajeot, Voirin, etc.), some matched the performance of much-beloved bows the player already owned, and some were entirely original in their nature. All offered their owners tailored playing characteristics and personalized styling. All delivered a refined and sophisticated experience beyond even the best selling Codabow Diamond series.

Codabow referred to these bespoke bows as their MARQUISE bows, evocative of the distinctive cut of diamond prized for its elegance and sophistication.

The birth of the Codabow Marquise GS Violin Bow

After years of crafting bespoke MARQUISE bows, it became obvious that one design in particular was the most requested. Its optimum balance, flexibility, and weight providing exquisite handling. Its breakthrough organic-fiber architecture expressing a warm, rich, powerful sound.

High-sensitivity carbon fibers extending continuously from button to tip plate bestow in it a natural response and beauty. Referred to inside the workshop as the ‘Gold Standard’, this MARQUISE design appeals to discerning players more than any other and is the clear choice as the standard-bearer of the MARQUISE Experience!

Be one of the first in the country to try it out!

January 09, 2017

Thomastik Versum Cello strings

Thomastik-Infeld are delighted to report their Versum cello strings are proving popular with leading cellists since their launch at the beginning of 2016.

Versum strings feature steel core and multialloy wound A and D strings and spiral core, tungsten/chrome wound G and C strings. In keeping with the complete Thomastik-Infeld string range, they are handmade in Vienna.

Versum strings are noted for their striking tonal balance that comprises a sweet high end and a warm lower end. Their focused sound and powerful and precise intonation afford cellos a unique personality and versatile expression. Such sonic benefits and versatility have subsequently seen notable Thomastik cello artists Elisaveta Sharakhovskaya and Martin Rummel use them in conjunction with other Thomastik Cello strings to achieve new and exciting sounds. Elisaveta Sharakhovskaya uses them alongside Thomastik Spirocore strings, stating, “I love this string combination, because of their warm, powerful, colourful and rich sound palette”.

Martin Rummel plays a mixture of Spirit, Belcanto, Spirocore and Versum strings. Martin comments, “For a very long time, I have used Thomastik Tungsten Spirocore C and G strings on all my instruments… Currently I am playing the new Versum A and a strong Tungsten Spirocore C, while we are experimenting on new D and G strings… Thomastik-Infeld continuously impress and inspire me, and I always feel that all their strings enable me to use my instruments to their maximum range of expression.”

Versum strings have gained notoriety for their stand-alone qualities as well as their ability to be used in conjunction with other leading cello string types to add richness, warmth and power to instruments.

Taken from UK distributors websites – Barnes and Mullins

April 12, 2016

Alphayue violin strings now available in fractional sizes

Alphayue violin strings now available in fractional sizes

The Thomastik Alphayue violin strings which combine an unbeatable price with Thomastik-Infeld quality means you no longer have to settle for solid-steel strings to assure durability. These strings, yes at this price, have an advanced synthetic core which delivers a rich, colourful sound impossible to achieve with solid steel core strings. They live a long life and are unaffected by temperature and humidity changes.

Until now they have only been available in full size but they are now also available in fractional sizes opening up an excellent choice of string to improve the sound of any student instrument

Available in 4/4, 3/4, 1/2, 1/4 and 1/8 size




August 06, 2014

Kaplan Amo violin strings

ka310Kaplan Amo Violin String Set, 4/4 Scale, Medium Tension Scaled to fit 4/4 size violin with a playing length of 13 inches (328mm), these medium tension strings are optimized to the needs of a majority of players. Packaging in uniquely-designed sealed pouches provides unparalleled protection from the elements that cause corrosion.

  • Kaplan Amo delivers warmth, richness, and flexibility for brighter instruments
  • Synthetic core produces a rich, powerful tone
  • Short break-in time and excellent bow response provides superb play-ability
  • All D’Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry

The Kaplan Amo violin strings are currently being trialed and provide warmth, richness and flexibility for brighter instruments. They settle in quickly, exhibiting a rich tonal colour palette and superb bow response. Leave us a post and you’ll be the first to know when they’re finally released for sale.