Recorder Forum Home Page › Forum › Recorder Makes, Models and Maintenance › Next step after Yamaha YRA-28B Alto (towards a Bernolin Resin)? › Reply To: Next step after Yamaha YRA-28B Alto (towards a Bernolin Resin)?
The model number on Aulos altos is printed on the recorder itself, at the narrow end of the main barrel (near the foot joint), on the bottom. There are two 509 models – the 509 (an earlier version from about 20 years ago) and the 509B (current version). So if you mention the model, be sure to designate the full number. Just FYI, the “B” does NOT stand for “baroque fingering” as it does on some other manufacturers’ model number; on Aulos, it just stands for the version number.