Oakland-based Pandora just announced that it's purchasing the assets of San Francisco-based Rdio for $75 million, contingent on the latter company getting bankruptcy protection. As shouldn't be surprising given the rapid rise of Spotify and the introduction this year of Apple Music, Rdio hasn't been doing so well, as Consumerist reports.

Though it's somewhat unclear whether Pandora will also be purchasing Rdio's customer base in a separate transaction, it appears pretty clear that this is the end of the line for Rdio as we know it. As the Business Times reports, Pandora plans to "use components from the company to build its own music-streaming unit." This means that Pandora is feeling the pressure, especially from younger consumers, to have on-demand streaming of songs and not just randomized radio.

This move comes on the heels of Pandora's acquisition of Ticketfly last month, and a licensing deal finally struck last week with Sony/ATV, with whom they'd been battling for years.

Via the Chronicle we learn that all these moves taken together appear to be Pandora's effort to boost their stock price following an $85.9 million third quarter loss, and they signal the desire of the company to expand their reach into more parts of the music business. As CEO Brian McAndrews said in a statement, "Whether streaming through radio, on-demand or in-person at live events, Pandora is building the definitive source for fans to discover and celebrate music."

Five-year-old Rdio has tried to make a dent in the streaming market, in particular by gaining international market share in place like India, but it wasn't enough to pose a threat to the dominance of Spotify. Some Rdio staffers will be moving over to Pandora's offices, however CEO Anthony Bay will be moving on.

Notably, Rdio posted a snarky open letter to Apple back in June after the announcement of Apple Music, saying, "Welcome, Apple. Seriously. Welcome to the most exciting and important frontier since the digital music revolution began 16 years ago."

Pandora now employees over 1,000 at its Oakland headquarters, and boasts 80 million active users per month. CNBC took a tour of the offices in September, and apparently everyone there gets really greedy about free avocados.

Previously: Oakland's Pandora Buys SF's Ticketfly For $450 Million