For sections with time indices, the measure number given will typically be the first complete measure of the given segment.  Upbeats or other partial measures at the beginning of a section will be included in the time index, but not in measure numbers.  The first complete measure of a movement or song is m. 1.  Upbeats at the beginning of pieces are not counted as measures.  However, incomplete measures at the end of movements or songs are counted.  In some cases, where a given segment begins less than halfway through a measure, that measure number may be indicated, even if it is not technically a complete measure.  I try to use the best logic in my judgment.

2. For literal repeats that are actually indicated with repeat signs in the score (:||), the same measure numbers will be used for both statements and indicated as such in the guides.  This is standard practice.  The first measure of a second ending will have the same measure number as the first measure of a first ending.

3. For movements of the Scherzo/Trio type (typically the second or third movement of a large instrumental work) with Da capo indicated in the score, the measure numbers of the Da capo will be the same as the first statement.  However, in the total number of measures, the repeat of the main (usually scherzo) section will be parenthetically indicated at the end of the movement.  For example, if a scherzo were 100 measures and its trio section 75 measures, the total indicated would be given as [175 (+100) mm.].  This only applies to Scherzo/Trio type movements.  Exposition repeats or repeats within a scherzo or trio section will not be counted.  The same goes for strophic repetitions that are indicated with repeat signs in songs, even though the texts for each statement are different.