Range
The steelpan family covers a range of more than four octaves. Each pan has in the region of 20 to 30 notes. The actual number of notes on a particular pan differs depending on the pan maker. The difference is usually no more than a tone at either the upper or lower registers.
Here is a guide to the range of the pan family.
Frontline Pans
High tenor, D to E Double tenor, F# to C# Second tenor, F# to C#
Midrange Pans
Guitar, D to A Cello, C to G Quadrophonics, Bb to B
Background Pans
Tenor Bass, F to B Six Bass, Bb to Eb