function [noteIdx, tOn, spanS, ninfo] = recorder_notes(P)
% RECORDER_NOTES The gesture: one to three tongued notes.
%
% Each note starts note_dur_s + gap_ms after the previous one and is rendered
% over its own span: the sounding length plus enough ring for the release and
% the resonator decay (the last note gets the full tail_s). Notes are
% rendered independently and summed; the bore state does not carry across a
% note change, which is right for tongued (detached) articulation and is the
% model's stated limitation for legato.
%
% Returns row vectors: noteIdx (fingering chart rows), tOn (onset times, s),
% spanS (rendered span of each note, s), and ninfo with the total duration.

K = min(3, max(1, round(P.note_count)));
notes = [P.note1, P.note2, P.note3];
gap = max(0, P.gap_ms) * 1e-3;

noteIdx = zeros(1, K);
tOn = zeros(1, K);
spanS = zeros(1, K);
for i = 1:K
  noteIdx(i) = min(max(1, round(notes(i))), 14);
  tOn(i) = (i - 1) * (P.note_dur_s + gap);
  if i < K
    ring = min(P.tail_s, 0.30);
  else
    ring = P.tail_s;
  end
  spanS(i) = P.note_dur_s + ring;
end

ninfo.count = K;
ninfo.durationS = tOn(K) + P.note_dur_s + P.tail_s;
end