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Here is a 24 pages free German pdf manual download to be found for an accordion, called the Logicordeon.
Its the same as the Reuther accordion, or the Janko system and its ancestors.
Includes many schemes and graphic info on the 6+6 keyboard system.
This 6+6 system gives piano accordion players the chance to use identical fingering in all keys, if 1 repeat row is included.
The 72 bass Logicordeon is for made by the Harmona Weltmeister company in Germany. You can find all info here:
http://www.musiker-laden.de/tasteni...opf-akkordeons/knopfakkordeon-logicordeon.php
Price for a new instrument seems to be around 1.200 Euro.
Its the same as the Reuther accordion, or the Janko system and its ancestors.
Includes many schemes and graphic info on the 6+6 keyboard system.
This 6+6 system gives piano accordion players the chance to use identical fingering in all keys, if 1 repeat row is included.
The 72 bass Logicordeon is for made by the Harmona Weltmeister company in Germany. You can find all info here:
http://www.musiker-laden.de/tasteni...opf-akkordeons/knopfakkordeon-logicordeon.php
Price for a new instrument seems to be around 1.200 Euro.