 In the 2010s, designs based on this model are popular enough to be marketed as "gypsy jazz guitars" and are the guitars of choice for most practitioners of the style on account of their responsiveness and particular tonal characteristics.The double bass is the low-pitched instrument in gypsy jazz.The bass is mostly used for a rhythm section, accompaniment role, playing walking basslines, "two-feel" parts where the root and the fifth (or sometimes another chord tone) are played as quarter notes on the first and third beats, respectively, and for ballads, a mix of whole notes and half notes.