Need more content for automated platform

I developed an automated platform which crawls and indexes direct mp3 urls then making them searchable to my users.I have a lot of content available – over 550,000 mp3s. So far Google has indexed about 300,000~ since i released the platform 3 weeks ago.

I'm wondering, since these mp3s are indexed via crawler what type of automated content could I add to the pages? The crawler indexes 20,000-100,000 new MP3s a day so doing anything manual is impossible.

I need more content.

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Need more content for automated platform