It's a way of playing guitar sometimes called Chicken picking whose great masters are called Chet Atkins or Merle Travis. Carmine covers some of their titles but also adds pieces from other repertoires than American standards. Romantic Journey features Domenico DoPrao on percussion too, and it's called Romantic Journey. You can discover this exceptional musician on his own page here. Domenico accompanies Carmine either on the cajon or with the congas plus some small percussions. The set is instrumental but it is not uncommon to see everyone humming the songs that bring memories back. The best thing is to watch the videos to get an idea. Select them on one of the players below and let yourself be carried away by the magic...
There is also an album recorded with studio musicians Cowpoke. You'll find it on the music page.