It has been created due to the big demand for "Sonata" bases, recognized by their quality and sound. Now they have been combined with "Futura" trebles.
Gauges:
SN11 1ª E 0,73 mm / .029''
SN12 2ª B 0,83 mm / .033''
SN13 3ª G 1,04 mm / .041''
SN14 4ª D 0,78 mm / .031''
SN15 5ª A 0,86 mm / .034''
SN16 6ª E 1,09 mm / .043''