Answer:
Since it's B-flat major, it's the most common scale used for concert band arrangements.
Step-by-step explanation:
but to answer your question,
First line: Mi-Fa-Sol-Sol-La-La-Sol-Do-Re-Mi-Re-Do-Ti-Do-Mi-Fa-Sol-Sol-La-La-Sol-Do-Re-Mi-Re-Do-Ti-Do-Fa-Mi
Second Line: Re-Mi-Fa-Mi-Re-Fa-Mi-Re-Do-Ti-La-Sol-Mi-Fa-Sol-Sol-La-La-Sol-Do-Re-Mi-Re-Do-Ti-Do
(I hope this helps xx)