The organisation has approached four un-named London agencies with a brief to help it tender for an additional £10 million in government funding. The search is being handled by the AAR.
Should the charity's bid be successful, the winning agency will work with it on a through-the-line marketing campaign aimed at encouraging young people to sing.
Youth Music recently embarked on a PR-led campaign called "Revolting Youth", aimed at encouraging young bands to engage with politics in their music making.
The campaign was backed by bands including Dirty Pretty Things, Get Cape. Wear Cape. Fly, and HARD-Fi; the fashion designer Katharine Hamnett; and the photographer David Bailey.
Youth Music was unavailable for comment.