I haven't reached the minimum threshold. Will I lose my work?

No, you will not lose your work.

If the curator fails to achieve the minimum threshold by the end of the month, Musixmatch will consider these completed tasks (not paid) when the minimum threshold is reached (50$).

Eg if a Curator will complete 80 tasks on January and 50 tasks on February for The Jukobox mission (0.5 USD per task), he will not get paid 40 USD on February (for the 80 tasks completed), but he will be paid 75 USD on March (for the 130 tasks completed), unless our team will find mistakes pending the quality check.