Music on the Buses

This is the bus I get in the morning from Clapham Junction to Brixton.
Since I have shifted my hours around to start earlier I get this bus more often. I also co-incide with more school kids. This is fine - I'd rather kids used buses than their parents cars.
However London has a problem. Other places might also have a problem but London's is the only one I can report on.
I need to preceed this with a statement: 'I am a grumpy [old] woman.'
The problem is that swanky mobile phones these days have a facility whereby they can play music stored on the phone through the speaker rather than just channelling it down headphones. Who ever gave a phone this function deserves a good talking to imho. Anyway there are significant numbers of people (mainly kids although not exclusively) who play music, often loudly, through their phones on the bus. This is EXTREMELY annoying if you don't want to listen to rap, r'n'b, garage or any other genre that you wouldn't normally pick. Especially if its 7.30 am and you wish you were still unconscious under the duvet.
Having experienced this personally I've considered asking offending person to turn their music down. But this is not a polite culture we live in and I am worried about abuse and physical violence. So I sit and fume in silence. I even complained to Transport for London once. They said they ask peopel to respect fellow passengers but cannot enforce this.
In London under 18s in full time education get a free travel pass. One of the conditions is that they do not break rules on buses. However playing music doesn't seem to be one of these.
BUT it turns out I am not the only Pi**ed of person. Someone has spoken out via the web and started a petition. You can see the website and sign it here: music free buses
Woo Hoo. A people's uprising! Well maybe not but its a start.
H