Our strategy for the campaign release was designed to maximize the return on investment through a dynamic budget allocation strategy that divided the £3.4K spend across various audience segments and geographical tiers. We conducted continuous A/B testing on ad creatives and audience parameters for each distinct playlist, allowing us to identify the most cost-effective pathways to conversion. The process of residual optimization was fundamental to the success of obtaining a very low average Cost Per Click of only £0.05. In addition to that, a strong retargeting system was put in place by us to reach out to users who had already interacted with any of the label's ads or playlists. As a result of this, a powerful feedback loop was established and the listener retention was significantly increased, thus, driving deeper engagement across the catalog. This campaign is a perfect example of a best practice in record label marketing. They have also found that abandoning the previous practice of promoting each track separately and rather investing in the growth of their playlist ecosystem, Promoting Sounds has established a formidable, self-sustaining marketing engine. Period: 29,000 playlist saves and 70,000 new catalog streams in only 28 days, representing an investment that returns immediately and profoundly.