Final answer:
Modernist composers made their music more accessible by altering traditional scales, incorporating popular and folk music, and utilizing new technologies.
Step-by-step explanation:
Modernist composers adopted several techniques to make their music more accessible to the public.
New musical scales and notes: Modernist composers altered traditional scales and notes, introducing dissonance and unexpected sounds. They moved away from the traditional tonal system and experimented with atonality, creating music without a central, binding key.
Incorporation of popular and folk music: Many modernist composers incorporated elements of popular and folk music into their compositions to make them more relatable and familiar to the public.
Use of new technologies: Advancements in technology allowed for the mass production and distribution of music, making it more accessible to the public. Phonographs and radios made it easier for people to listen to music in their homes.