Piccolo basses are great because they allow us bassists to explore higher registers in search of melodic and harmonic territory that might not come naturally when playing with deeper notes.
Charles Berthoud certainly proves that point with this video of him playing his composition "Resurrection." This piece is performed on Charles' LeFay D-Tuner piccolo bass that is tuned to CGCG. Check out his phenomenal use of multiple techniques:
Give Charles a follow: HERE