Note constructor
Note(})
Implementation
Note(this.string, this.fret,
{this.melody = false,
this.timing = Timing.unspecified,
this.length,
this.chord,
this.hammerOn,
this.pullOff,
this.slideTo,
this.pick,
this.and}) {
assert(hammerOn == null || fret < hammerOn!);
assert(pullOff == null || fret > pullOff!);
assert(slideTo == null || fret < slideTo!);
}