daCapo is a music score reading app that will transpose, and navigate a music score sheet. It reads compressed MusicXML files which allows you to import music output from PC based Music score editing software such as Finale, Sibelius, Cubase, RoseGarden, MuseScore and others and read it in your IPhone. daCapo (iPhone version) is fully capable of reading music score for an entire orchestra rendering parts individually, but is best used with lead sheets (melody, chord and lyrics) allowing you to practice without the requirement to use your fingers to flip through pages. It understands music notation such as dal segno, da capo, al fine, al coda, the bar repeat signs and 'fin 1' 'fin 2' music conventions. Transposition allows you to change the key to match the voice of the singer. Tempo allows you to speed up or slow down the song. "daCapo" is bundled with an empty database but features a quick start page when you select import and the catalog is empty. It provides links to music content on http://wikifonia.,org and a host of others sites. It accepts direct downloads from these websites, from email attachments, as well as (musicXML) files shared through apps such as Dropbox, Evernote, FileApp.
There's a feature built into iOS 11, iOS 12, and iPadOS that is one of those love/hate features -- you'll either love it because it will dramatically improve your typing speed, or you'll hate it because it.