Members can access the Title option only after they have added the 78 by using the Missing Info option at the base of the page. As you said, the only option I had as the 78 had different Operas on each side is to use the Notes section. It prevents the tracks looking too cluttered and causing confusion about the track title.
Obviously SECTIONBREAK would be preferable if available.
I think the way you handled it now, with the name and act number of the operas in the Notes, is perfect. When both recordings are from the same opera, I have also used the Title option under the catalog number to enter the title. Unfortunately, that option is only available to moderators when they open "Edit Record Details". Not sure why it's not available to everyone right away.
I seldom work with 78rpm, so I wasn't aware of that. However, the layout for sectionbreak material is so common for classical recordings that the feature would be very useful for 78s.
The titles can be written:
Otello (Act 4) Ave Maria, Piena Di Grazia (Hail To Thee, Mary, Full Of Grace)
and
Aida (Act 3) Oh Patria Mia (My Native Land)
This adheres exactly to the label layout.
Discographies often use periods to break up the title sections: Aida. O patria mia, etc., and older records in 45Worlds, before the introduction of Sectionbreaks, as I recall, can be seen with this layout.
Some of the examples seen in 45Worlds input are virtually unfindable since title elements have been eliminated in their entirety.
The main title (Aida) and the part title (O patria mia) are necessary title elements, if present on the label.
_______
Other classical title label examples help make this clear:
[1] First Movement
Symphony No. 1
Beethoven
[2]
Piano Sonata No. 1
First Movement
Mozart
[3]
A: Verdi
Prelude
La Traviata
B: Sempre Libera
La Traviata
Verdi
For the first example, the part title First Movement is indistinctive. Only with the main title and part title does it become clearer (and through the composer field's information). The title would be transcribed as Symphony No. 1. First Movement
For the second example, the title would be transcribed Piano Sonata No. 1. First Movement
The third sontains a generic part title and specific part title, transcribed as: La Traviata. Prelude / La Traviata. Sempre Libera
With Sectionbreaks, the third example would appear more simply as:
These are two soprano opera arias: Ave Maria, piena di grazia from Otello and O patria mia ('Oh patria mia' is the odd spelling seen on the label) from Aida. The aria titles are translated here as Hail to Thee, Mary, Full of Grace and My Native Land. The arias are sung in the original Italian.
Sectionbreaks are used to distinguish the titles of main works (Otello and Aida) from the titles of selections.