Added source</tei:att> to element schemaSpec</tei:gi> to indicate the latest TEI ODD version that this schema is developed with.
Corrections in the guidelines as of GitHub issue 56</tei:ref>: Wrong attribute bpm</tei:att> in a dynamics</tei:gi> element has been changed to volume</tei:att>.
Moved scale</tei:att> from element accentuationPattern</tei:gi> to attribute class att.scale so it can be used also in other elements.