Ensure the sheet music is a vector-based PDF or high-DPI scan. There is nothing worse than squinting at blurry accidentals during a performance.
A "top" PDF is scanned or typeset at 300 DPI (dots per inch). It avoids faded staves, tiny margins, or awkward page turns. The best brass band PDFs are designed for landscape orientation on an A4 or Letter sheet, allowing two pages on a single music stand. 120 hymns for brass band pdf top