}
		if (wmin)			// if some width
			fl = 1 //true		// start a new sequence
	}
}

// adjust some voice elements
// (possible hook)
function voice_adj(sys_chg) {
Abc.prototype.voice_adj = function (sys_chg) {
    var	p_voice, s, s2, v, sl

	// insert the delayed P: and Q: in the top_voice
	function ins_pq() {
	    var	s, s2,
		p_v = voice_tb[par_sy.top_voice]

					s.p_v = p_v
					s.st = s2.st
					break
				}
			}
		}
	} // ins_pq()

	// do the note mapping stuff
	function do_map(s) {
	    var	m, nt

		for (m = 0; m <= s.nhd; m++) {
			nt = s.notes[m]
			set_map(s.p_v, nt, nt.acc, 1)		// transpose done
		}
	} // do_map()

	// set the duration of the notes under a feathered beam
	function set_feathered_beam(s1) {
		var	s, s2, t, d, b, i, a,
			d = s1.dur,
			n = 1

						s.a_ly = s2.a_ly;
						s2.a_ly = null
						break
					}
					break
				}
				continue
			}

			if (s.feathered_beam)
				set_feathered_beam(s)
			case C.NOTE:
				if (s.feathered_beam)
					set_feathered_beam(s)
				if (p_voice.map
				 && maps[p_voice.map])
					do_map(s)
				break
			}
		}
	}
}

/* -- create a new staff system -- */
function new_syst(init) {
    var	st, v, sy_staff, p_voice,

	}

	if (vover) {
		syntax(1, "No end of voice overlay");
		get_vover(vover.bar ? '|' : ')')
	}

	voice_adj();
	self.voice_adj()
	sort_all()			/* define the time / vertical sequences */

    if (tsfirst) {
	for (v = 0; v < voice_tb.length; v++) {
		if (!voice_tb[v].key)
			voice_tb[v].key = parse.ckey	// set the starting key
	}

			maxtime = p_voice.time
	}
	if (!maxtime) {				// if first %%staves
		par_sy.staves = []
		par_sy.voices = []
	} else {
//		if (nv)					// if many voices
			voice_adj(true)
		self.voice_adj(1)
		/*
		 * create a new staff system and
		 * link the 'staves' symbol in a voice which is seen from
		 * the previous system - see sort_all
		 */
		for (v = 0; v < par_sy.voices.length; v++) {
			if (par_sy.voices[v]) {

		par_sy.voices[v].second = p_voice.second;
		st = p_voice.st
		if (st > 0 && p_voice.norepbra == undefined
		 && !(par_sy.staves[st - 1].flags & STOP_BAR))
			p_voice.norepbra = true
	}
//--fixme: is this useful?
//	if (!maxtime && nv)		// if first staff system and many voices
//		voice_adj(true)

	curvoice = parse.state >= 2 ? voice_tb[par_sy.top_voice] : null
}

	// get a voice or create a clone of the current voice
	function clone_voice(id) {
		var v, p_voice