I want a list of the leading music sevice providers in Japan. I need
atleast 6 names.

I am asking for music service providers only for the business segment
(e.g providers for Retail, Hotels, Restaurants, pubs, supermarkets
etc..) and not for the consumers segment

I attach 2 examples for the kind of music service providers I am looking for:
in the US: companies like Muzak, DMX music, Music Choice an PlayNetwork
in the UK: a list (in the ppl site) of music service providers (Hard
Disk based) can be found in the following link:
http://www.ppluk.com/ppl/ppl_lc.nsf/PDL/LicMSD-List2?Opendocument

Snapshot's 'Japan Recorded Music 2003' - http://www.bizlib.com/ZSN55798.html

The report gives an instant overview of the Japanese recorded music
market and covers albums and singles in all formats.

Specifically this publication is not good for me since it is related
to the Records music business in Japan which is mainly focused on the consumer
side. I am interested only in the business segment of this music
market and in the service providers in this domain.

Try USEN - they are easily the number one provider of "background"
music for restaurants and businesses. They run their service by cable
to most large cities in Japan. I don't know of other suppliers - there
might not be six.

http://www.usen.com/corporate/en/group.shtml