We get a lot of inquiries from people about mouthpieces for doubling, especially between horn and instruments with similar size mouthpieces: trumpet, alto horn, mellophone. The following letter is typical.
My wife is a French Horn and Alto Horn player who tells me she would like an Alto Horn mouthpiece with a French Horn Rim. She referred me to ****** who sent me to your website. We play in the ***** Brass Band.
Her French Horn mouthpiece is a Constellation 7BW (picture attached). Her Alto mouthpiece is whatever was in the case (Salvation Army loaner). I can get that model if you need it.
How to proceed?
Here’s our response: