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Corda in Budello HT HR

High Twist Gut HR (demi-rectified oiled strings)

It can be mounted on these instruments

famiglia violino

Violin family

famiglia gamba
Gamba family


The origin of the employment of gut to make musical strings is lost in the mists of time. Along the centuries manufacturing techniques were gradually refined until they reached the perfection unanimously recognized as the trademark of Italian and French stringmakers in the 17th to 19th century.
The scope of our work, supported by constant research and painstaking experimentation, is to offer natural gut strings produced by modern craftsmen working in the ancient Italian/French string-makers manufacturing criteria that for centuries has been passed on from one generation to the next, sure to offer you the very best of our tradition and aiming to reach the magic of sound that only gut, of all materials, can achieve.


First choice plain gut strings for general use in high
and mid registers. All strings more than 0.50 mm. in diameter are exclusively high twist and undergo a specific processing aiming to ensure maximum elasticity and grant the best acoustical performance, ease of attack and long playing life, as proven by many acoustics and wear-and-tear tests.

The new product we offer instead of the varnished gut strings are the semi-rectified strings (HR types) .

String -varnishing is a modern treatment which was never used historically (gut strings were kept in olive or almond oil) and its sole purpose is granting a longer string playing life. But this happens at the cost of other aspects, the most important being a loss of sound quality, brightness for example, but also the bowing attack is not as efficient as with unvarnished gut.
The surface of the demi- rectified strings is only partly rectified, imitating the manual polishing techique of the time just to obtain a true string.
With this method the amount of fibers damaged by the abrasive action is noticeably reduced as compared with strings rectified with modern procedures. The advantages are: better stability against climatic changes, longer playing life and better acoustic performance.
We tested these strings for a long time: they best imitate historic hand- polishing in that they damage only a small amount of gut fibers as compared with current rectifying methods.
The advantages are:
an improved stability by climatic changes, longer playing life (similar to those of the vernished ones) and superior acoustical performance.

Owing to the special manufacturing technique employed in the production of the demi-rectified string type, the diameters in this table indicate a mean value.
E.g. a 66 string indicates, in fact, a possible diameter-window between 65 and 67.


Gut is liable to suffer from cutting edges. Before stringing the instrument do make sure the nut and bridge are free from sharp edges and the nut grooves not too deep and perfectly smooth.
You can get rid of sharp edges with very fine grit sandpaper (600, for example) or the finest steelwool (000).
The best sound quality develops when the strings have completely set, which may ordinarily take sometime. To achieve a stable intonation in just a few minutes you can repeatedly pinch each string at midlength with your fingers, pull it decidedly sideways and tune it up again. Stop when the string does not pull out of tune anymore.

For more information

For more information read our FAQ


Minimum order: 50 euros excluding IVA / VAT / TAV (except UE customers)

NOTE: gauges are expressed in hundred of millimeters (i.e. 120 = 1,20 mm) gut gauges on the tables are considered at the making standard condition of 20 ° C and 60 % degree of humidity.

CODE Lenght 120 cm euros excluding IVA / VAT / TAV (except UE customers) Lenght 180 cm euros excluding IVA / VAT / TAV (except UE customers)
60 HR 6,2 /
62 HR 6,2 /
64 HR 7,7 /
66 HR 7,7 /
68 HR 7,7 /
70 HR 7,7 /
73 HR 7,7 /
76 HR 9,2 /
79 HR 9,2 /
82 HR 9,2 /
85 HR 9,2 /
88 HR 9,2 /
91 HR 11,6 /
94 HR 11,6 /
97 HR 11,6 /
100 HR 11,6 /
104 HR 11,6 /
108 HR 11,6 /
112 HR 14,9 /
116 HR 14,9 /
120 HR 16,8 /
124 HR 16,8 /
128 HR 16,8 /
132 HR 16,8 /
136 HR 16,8 /
140 HR 19,1 /
145 HR 19,1 /
150 HR 19,1 38,2
155 HR 19,1 38,2
160 HR 20,9 41,7
165 HR 20,9 41,7
170 HR 20,9 41,7
180 HR 24 48,3
190 HR 26,9 53,8
200 HR 26,9 53,8
210 HR 31,4 62,5
220 HR 31,4 62,5
230 HR 31,4 62,5
240 HR 34,4 68,7
250 HR 34,4 68,7
260 HR 34,4 68,7
280 HR 42,9 86
300 HR 42,9 86
320 HR 47,8 89,7
340 HR 47,8 89,7
400 HR / 94,1
420 HR / 98,9
440 HR / 103,6
460 HR / 110,6


Aquila high twist gut stringsAquila high twist gut strings Giovanni Pietro Pinaroli 'Polyanthea Technica ...' Roma 1718-32 Giovanni Pietro Pinaroli 'Polyanthea Technica ...' Roma 1718-32 Opening pages of the statute of the Roman Strings Makers' Guild, Rome 1642 (Biblioteca Angelica, Rome) Opening pages of the statute of the Roman Strings Makers' Guild, Rome 1642 (Biblioteca Angelica, Rome)