Ukulele, guitar and Hawaiian steel guitar.
I just got mine, and I love it! I have other recordings by ukulele greats like Ohta-San, Lyle Ritz and Roy Smeck, along with the “Legends of Ukulele” compilation put out by Rhino featuring other masters past and present, and I think Gerald’s work ranks right up there among them. (Nice steel guitar, too) Congrats on a fine CD! Highly recommended.