The core made of a very new material with new caracteristics, gives cantiga basses new quality of sound, new harmonics spectrum. Touch, feeling and new playing sensations. Savarez exclusivity. SPECIFICATIONS: Trebles Strings: E1 – B2 – G3 ALLIANCE Fluoro carbon thinner stringsoffers a clear sound all over the treblesstrings. Authorise infinity of nuances and coloursand remain clear on very high position. G3rd assumes a perfect transition from B2to A3. Basses Strings: D4 – A5 – E6 Significantly different strings. A new core made of a verydifferent multifilament rawmaterial makes cantiga bassesstrings an actual innovation. Outstanding specific caracteristics. Easy comfortable safe playing.