Complex sentence: During the seventies there was a surge of many new bands but there was very little support from the music industry towards producing original rock music, and the bands suffered from it and had to limit themselves to perform in hoyos fonqui.
Split into simpler sentences: During the seventies there were many new bands but very little support from the music industry for producing original rock music. The bands suffered from it and had to limit themselves to performing in hoyos fonqui.