Dear Dale and Dave Many thanks to you both. Dale, These "down 15" clefs really exist, but they are rare and so Sibelius hasn't implemented them. These clefs specify to play two octaves lower. And Dave, you are right; these symbols can be created in Sibelius, but this is rather difficult without seeing the screen. So I decided to do it with a technic information; thanks Dale. And since they are three eight year old children, it's certainly the best solution. With kind regards Claudio If you wish to unsubscribe, send a blank message with the single word, unsubscribe - in the Subject line to: sib-access-request@xxxxxxxxxxxxx