Although allowed, the following types of content may be considered undesirable by some DSPs and might not be published.
Functional or noise content
Meditation sounds
Sleep sounds
White noise
Rain or other environmental sounds
Please note that functional and noise content is prohibited on Deezer and Meta, and may be subject to demonetization or reduced royalty rates on other platforms.
Duplicate, repetitive or mislabelled content
Multiple tracks packaged as a new UPC where those tracks have been delivered under one or more other UPCs.
Multiple tracks delivered as a new UPC where that UPC features the same track more than once.
Tracks with multiple ISRCs.
Reusing an ISRC from an older track on a new audio file in order to inherit its streaming history. Each recording must have its own unique and correct ISRC.
Tracks delivered multiple times with minor imperceptible differences between versions, or with differences only in metadata or artwork, in order to artificially increase play count.