Final answer:
Four new music technologies that affected the music of the 1960s and 1970s were electric instruments, recording technology, electronic effects, and studio techniques.
Step-by-step explanation:
Four new music technologies that affected the music of the 1960s and 1970s were:
- Electric Instruments: The combination of electric instruments with the sounds of gospel, blues, country, jazz, and R&B gave birth to the new sound of rock and roll.
- Recording Technology: Advances in recording technology allowed musicians to experiment with sound and create new genres like psychedelic rock and progressive rock.
- Electronic Effects: The introduction of effects pedals and synthesizers revolutionized music production, enabling artists to create unique sounds and experiment with different tones.
- Studio Techniques: The development of multitrack recording and other studio techniques allowed musicians to layer different elements and experiment with complex arrangements, contributing to the evolution of music.