Modifiers matching instruction:

• formal,
• written,
• specialized,
• good,
• online,
• ongoing,
• direct,
• useful,
• advanced,
• special,
• passive,
• individual,
• medical,
• seasonal,
• scientific,
• private,
• contrapuntal,
• military,
• standard,
• organized,
• graphic,
• technical,
• motivating,
• effective,
• proper,
• elementary,
• outdoor,
• extra,
• religious,
• informal,
• artistic,
• traditional,
• educational,
• practical,
• planned,
• simple,
• alternative,
• level,
• single,
• linear,
• interactive,
• logical,
• supplemental,
• atomic,
• verbal,
• christian,
• supporting,

Simple categories matching contrapuntal:

• instruction,
• piece,
• form,
• phenomenon,
• devices,
• music,