‘Freespeed Sonata’ is the latest album by SIG. delivers a classical hip hop fusion shaped like a four movement sonata. Released in February 2010 It all started with short solo piano pieces that Sig performed on his old 1902 Bluthner lent to a poet friend in Berlin. A few days later, while travelling in Venice, he composed the score looping together short melodies and harmonic flows selected from the pieces.