Amazon launch an inexpensive streaming music service that would only work on the Amazon Echo, according to Recode. This service would be in addition to the $9.99 per month music service they’re already rumored to be working on, which is meant to take on Spotify, Google , and Apple’s streaming music services. Industry sources say the cheaper Echo-exclusive service will be $4 or $5 per month. Both the $9.99 and the cheaper service are expected to launch in September. While the report doesn’t mention the Echo Dot or Amazon Tap, I’d be very surprised if the service wasn’t available on those devices as well. The big question to me is if this is an Echo-exclusive service or an Alexa-exclusive service. The latter would mean that Fire TV devices could also have access to the new half price streaming music service.