 - Roland BK-9 - "16 tracks sequencer is useless and other bugs"- After I bought this keyboard, I thought it would be good. But it was not. The sounds are good, and that's all that is good. I thought the 16 tracks Sequencer would be perfect, but no. You can not r… 
 - Roland BK-9 - " Great keyboard!"
 translated- After several Yamaha keyboards including a Tyros 3 kept for 5 years, it was almost normal to pass Tyros 5 after the deadlock on the Tyros 4. The only problem is the price around 4200 € (61 ratings + … 
 - Roland BK-3 - " a nice surprise"
 translated- 61-key effect section provided very only one audio output I / O noon, USB host and device many sounds, well documented and edited in performance no sequencer but you can register two second… 
 - Roland BK-5 - " An orchestra all by himself!"
 translated- - 5 octave keyboard arranger / 61 keys - Sounds: 1172 sounds + 60 drum kits (drum sets) - Rhythms: 305 rhythm in 6 families rhythm + dial - Section Multi-effects: 8 reverb different, different … 
 
                            