Pen-Based Interaction for Intuitive Music Composition and Editing - Intelligent Music Information Systems: Tools and Methodologies - page 279

Table 3. Examples of rules used in the pen-based musical score editor and the corresponding strokes
and interpreted symbols

Structural contexts before
recognition - Hand-drawn
strokes

Structural contexts
after recognition - Re-
transcribed symbols

Interpretation rules

UpStem (Stroke s)

DCV: HalfNote→head[rightUp,all]s.

SCV: .

SR: GeometricalShapes , {VerticalSeg}.

DCC: .

UpStem (Stroke s)

DCV: FilledNoteHead→head[rightUp,all]s.

SCV: .

SR: GeometricalShapes , {VerticalSeg}.

DCC: (this[top,extremity]Beam 1 |

this[top,extremity]Flag 1 ).

DescStem (Stroke s)

DCV: FilledNoteHead→head[leftDesc,all]s.

SCV: .

SR: GeometricalShapes , {VerticalSeg}.

DCC: (this[bottom,extremity]Beam 1 |

this[bottom,extremity]Flag 1 ).

Beam (Stroke s)
DCV:
UpStem→stemL[top,left]s,

UpStem→stemR[top,right]s,

stemR.head.staff = stemL.head.staff,

stemL ≠ stemR.
SCV:

.

SR: GeometricalShapes , {Segment}.

DCC: .
Beam (Stroke s)
DCV: DescStem→stemL[bottom,left]s,

DescStem→stemR[bottom,right]s,

stemR.head.staff = stemL.head.staff,

stemL ≠ stemR.
SCV:

.

SR: GeometricalShapes , {Segment}.

DCC: .