I was so happy to find this site.
It offers music based on Neuroscience.
According to the site, the music will help you relax and focus better.
The site is called: Focus @ Will
Here is what they have to say about it:
Listening to music with soothing aspects, that plays at 60 beats per minute, can decrease neural activity, and lead to a relaxed, but awake state called alpha state[11] that is defined by an increase in alpha brain waves and a decrease in higher activity beta waves. Increases in alpha waves have been tied to a psychological state of decreased self-awareness, timelessness, and motivation known as “flow”. Songwriters, musicians, writers, athletes, and meditators are all people who separately describe the same experience when flow state is reached.
Once flow state is reached how is it maintained, and for how long? We know that it takes approximately 20 minutes to get into a state of concentration, flow or not, in which you are able to habituate to irrelevant external stimuli[9]. Most people are able to maintain their concentration from a minimum of 20 to a maximum of about 40 minutes before having to take a break. Psychologists call this waning of attention the ‘vigilance decrement’, and suggest that it is due to either a reduction in cognitive resources or mindlessness and goal habituation. Some research suggests that a brief break can reduce this goal habituation and enable people to maintain vigilance for longer periods of time.
The entire process of maintaining focus for an extended period of time is not easy. It requires work on the part of your brain and is stressful[27]. An area of research devoted designing technologies that work with your brain to make work less effortful is called neuroergonomics.[28, 29, 30] Through neuroergonomics, technologies can produce experiences that enable your brain to feel less stress, and you to get more work done. That said you still need to be personally motivated to get to work and find your flow.