Key Signatures
Instead of writing a flat sign before every Bb note, it is easier to write just one flat sign after the treble clef. This means that all B notes on the staff are played as Bb, even though there is no flat sign placed before the note. This is called a key signature. One flat indicates the key of F major. Even though you don't know enough notes to play an entire F major scale yet, you can still play music in the key of F. If you are not familiar with all key signatures, you can usually tell what key a piece of music is in by the note if finishes on. Here are some examples in the key of F.
Play all B notes as Bb as indicated by the key signature.
The Note D (On The Fourth Line)
This D note is written on the fourth line of the staff.
This new D note uses the same fingering as F and Bb, which means that once again the higher note is produced by using more pressure with the lips. Here is an example which makes use of all three notes with this fingering.
