I found an excellent page of the festival and you can find many pictures and sounds. Texts are written in japanese.
Festival of Sawara in Chiba pref. is held twice in a year, on the second Friday-Sunday of October and the first Friday-Sunday after 10th of September. Decorated floats with big dolls on the top go in and around the downtown of Sawara. Traditional "Sawara Bayashi" music played on the floats is famous of its repertory and variation. The style of floats and music spread widly in the eastern part of Ibaraki prefecture and south area of Kasumigaura lake and form what can be called Sawara cultural area independent from Edo (Tokyo) culture.
The data, especialy sound data, are big. Each image data is about 30 kbytes and sound data about 20 kbytes which contains 20 seconds of RealAudio sound.
Oct. 11th (Fri) 10:00- Parade of Floats around the downtown. 18:00- Parade of Floats along Onogawa river Demonstraion of traditional dance at Nigiwai-Hiroba stage Oct. 12th (Sat) 10:00- Parade of Floats around the downtown, Market. 13:00- Demonstraion of various regional music and dance at Nigiwai-Hiroba stage 16:00- Main event at Omatsuri-Hiroba field 16:00 Ordering all (14) floats. 16:30 Demonstraion of various regional music and dance 17:45 Demonstraion of floats and greeting music playing 21:00- Demonstraion of traditional dance at Nigiwai-Hiroba stage Oct. 13th (Sun) 09:20- Parade of "Mikoshi" portable shrine 10:00- Parade of Floats around the downtown. 13:00- Demonstraion of various regional music and dance at Nigiwai-Hiroba stage 18:00- Parade of Floats along Onogawa river. 19:00- Demonstraion of traditional dance at Nigiwai-Hiroba stage