[MEI-L] cross-staff beams sample encoding

[Kőmíves Zoltán]

Hello,

Looking at the cross-staff beam sample encoding, a number of things occur
to me:

1. note with xml:id="m1e1" encoded a dotted 8th note, but I found this more
than a little confusing: the information that there is a triplet containing
one 16th-rest and two 16th-note seems to have been lost. Additionally, the
sum of the total duration in the layer adds up to more than the measure
duration defined by the time signature.

2. note with xml:id="m1s1l2e1" encoded in the wrong octave (it should be
e4, not e3).

3. The first note on staff 2/layer 1 is the dotted g, which is rhythmically
at the 2nd 16th triplet position. I understand that this can be derived
from the fact that this note is "sameas" the 2nd note of the displaced
triplet on the first staff, but it strikes me that this leaves the layer
"incomplete"; I would expect a <space> to fill up the time before the first
note; I think the following encoding would clearer:
Or do you think this is already too interpretative (interpreting the dotted
8th note as part of a sixtuplet over the entire measure, that is)?

                            <staff n="1">
                                <layer n="1">
                                    <tuplet bracket.visible="true"
bracket.place="above" num="3"
                                        num.visible="true"
num.place="above">
                                        <rest dur="16" xml:id="m1r1"
staff="2"/>
                                        <beam>
                                            <note pname="g" oct="3"
*dur="16"* stem.dir="up"
                                                stem.pos="right"
xml:id="m1e1" staff="2"/>
                                            <note pname="c" oct="4"
dur="16" stem.dir="up" staff="1"
                                                xml:id="m1e2"/>
                                        </beam>
                                    </tuplet>
                                    <tuplet num="3" num.visible="true"
num.place="above"
                                        bracket.visible="true"
bracket.place="above">
                                        <beam>
                                            <note pname="g" oct="4" dur="8"
stem.dir="up" staff="1"
                                                xml:id="m1e3"/>
                                            <note pname="a" oct="4"
dur="16" stem.dir="up" staff="1"
                                                xml:id="m1e4"/>
                                        </beam>
                                    </tuplet>
                                </layer>
                                <layer n="2">
                                    <space dur="8"/>
                                    <tuplet>
                                        <note pname="e" oct="3" dur="16"
stem.dir="down"
                                            xml:id="m1s1l2e1"/>
                                        <note pname="c" oct="4" dur="16"
stem.dir="down"
                                            xml:id="m1s1l2e2"/>
                                        <note pname="a" oct="3" dur="16"
stem.dir="up"
                                            stem.pos="right"
xml:id="m1s1l2e3" staff="2"/>
                                    </tuplet>
                                </layer>
                            </staff>
                            <staff n="2">
                                <layer n="1">
                                    *<tuplet bracket.visible="false"
dur.visible="false" num.visible="false" dur="2">*
                                        *<space dur="16"/>*
                                        <beam>
                                            <note pname="g" dots="1"
sameas="#m1e1" dur="8"
                                                stem.pos="left"
stem.dir="down"/>
                                            <space dur="16"/>
                                            <note pname="a"
sameas="#m1s1l2e3" stem.dir="down" dur="16"
                                                stem.pos="left"/>
                                        </beam>
                                    *</tuplet>*
                                </layer>
                                <layer n="2">
                                    <tuplet num="3" bracket.visible="true"
bracket.place="below"
                                        num.place="below" numbase="2">
                                        <beam>
                                            <note pname="c" oct="2"
dur="16" stem.dir="down"
                                                xml:id="m1s2l2e1"/>
                                            <note pname="g" oct="2"
dur="16" stem.dir="down"
                                                xml:id="m1s2l2e2"/>
                                            <note pname="e" oct="3"
dur="16" stem.dir="down"
                                                xml:id="m1s2l2e3"/>
                                        </beam>
                                        <rest dur="8" xml:id="m1s2l2e4"
loc="0"/>
                                    </tuplet>
                                </layer>
                            </staff>


Best
Zoltan
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