Standard Concert Mahogany Ukulele Pepe Romero Jr. and Daniel HO reinvent the Ukulele. Things keep getting smaller, however the sound is never compromised. New for 2018 is the ST Concert Ukulele combines the scale length of a concert, the overall length of a standard soprano, and the body volume of a tenor. The result is a compact instrument that is comfortable to play and provides plenty of volume. The triangular body allows easy access to the whole fretboard.