Instruments are unique in Alterra, in that the various benefits gained  as Armament Quality increases stack rather than overwrite. This means a  Superior Quality Instrument will have the benefits of Low, Moderate,  High, and Superior Quality active at the same time. Additionally,  Instruments do not have a Proficiency requirement. A player need not be a  masterful player of their chosen instrument, but a sincere effort to  play it must be made.   It should also be noted that singing, or the use of one's voice does not  qualify as an instrument. Most real world instruments may be used, but  please check with the Director if you intend to use an unorthodox  instrument.  Low Quality:

• Allows Spellcasting with the Instrument in place of Incantations. 5 seconds of playing at Common Rank +1 second per Rank.

Moderate Quality:

• Reduce the Mana Cost of all Active Spells by 1 (to a minimum Mana Cost of 1) while casting via the Instrument.

High Quality:

• The character is Immune to Silence effects while playing their Instrument.

Superior Quality:

• All Active Spell Glyphs gain +1 Scale while playing the Instrument.