add audio samples to readme

README.md

@@ -2,6 +2,7 @@
 
 A proof-of-concept for generating focus-enhancing music using neural entrainment.
 
+
 ## How It Works
 
 1. **Google Lyria RealTime** generates continuous, non-looping instrumental music
@@ -99,6 +100,35 @@ focus start --profile deep-work --duration 1200
 | energetic | 20 Hz | Driving electronic, high-energy momentum |
 | uplifting | 14 Hz | Warm melodic ambient, positive motivation |
 
+## Audio Demos
+
+Listen to samples generated by the system (best experienced with headphones):
+
+### Deep Work (18 Hz Beta)
+Dark electronic for intense focus.
+
+<iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//soundcloud.com/cubny/deepwork-300-reverb-limiter-width-2-1&color=%23ff5500&auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&show_teaser=false"></iframe>
+
+### Light Study (12 Hz Alpha)
+Lo-fi beats for reading and light tasks.
+
+<iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//soundcloud.com/cubny/light-study-300-reverb-limiter-width-2-2&color=%23ff5500&auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&show_teaser=false"></iframe>
+
+### Creative Flow (10 Hz Alpha)
+Evolving ambient soundscapes.
+
+<iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//soundcloud.com/cubny/creative-flow-300-reverb-limiter-width-2-3&color=%23ff5500&auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&show_teaser=false"></iframe>
+
+### Energetic (20 Hz Beta)
+High-energy momentum.
+
+<iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//soundcloud.com/cubny/energetic-1-120-reverb-limiter-width-2-5&color=%23ff5500&auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&show_teaser=false"></iframe>
+
+### Uplifting (14 Hz Alpha/Beta)
+Warm, positive motivation.
+
+<iframe width="100%" height="166" scrolling="no" frameborder="no" allow="autoplay" src="https://w.soundcloud.com/player/?url=https%3A//soundcloud.com/cubny/uplifting-1-1200-reverb-limiter-width-2-4&color=%23ff5500&auto_play=false&hide_related=true&show_comments=false&show_user=true&show_reposts=false&show_teaser=false"></iframe>
+
 ## Development
 
 ```bash