After a bit of investigation I found the following excellent advice from Pete Young and Liam Harris which I would like to share with those who are interested. On the Roland FR-1X accordion the following settings will recall the "Folk" accordion sound.
1. 'D Folk', Musette
33, 3b
'D Folk', Musette
2. 'F Folk', Musette
32, 3d
SOS Musette
ie.
1. 'D Folk', Musette
33, 3b
'D Folk', Musette
I.E.
1. Press SET once
2. Press 3 and then find 33 by pressing third register.
Press SET again and 33 disappears on the LCD or just Wait and 32 disappears on the LCD
3. Pressing the third register select 3B
2. 'F Folk', Musette
32, 3d
SOS Musette
I.E.
1. Press SET once
2. Press 3 and then find 32 by pressing third register.
Press SET again and 32 disappears on the LCD or just Wait. 32 disappears on the LCD
3. Pressing the third register select 3D
It's been a good few years since I looked. Re: creating a sound: there is a de-tune parameter on the FR1X, if I remember rightly and I think, possibly three voices can be fiddled with using de-tune to create a Musette.
Further to the above try the ‘I Folk’ set 31. This is based on a Paolo Soprano accordion which is closer to what most Irish and many Scottish players use than the ‘D Folk’ which I believe is modelled on a Hohner Morino V. (With the honourable exception of the greatest of all Scottish players, Jimmy Shand).
There is also a ‘Scottish’ set U4, unless it has been overwritten in which case a reset will bring it back. I read somewhere that U4 is based not on samples of an actual accordion, but a combination of samples with the Musette parameter cranked up to max. I’m not a great fan of that particular preset though.
Speaking of the Musette parameter, it is called ‘dEt ‘ . You access it by holding down the SET register until it goes into programme mode, then scroll down using Register 4 until ‘dEt’ is flashing in the display. It’s quite near the top. It will then show you the value for the currently selected set, which you can increase or decrease at your leisure. p.45 of The Fine Manual is your friend here.