Many music fans believe the quality of music is in decline, citing increasing homogeneity (less variety in sounds), simplicity, and commercialism. However, this perception is complex and debated, with other experts arguing that music's evolution is simply a reflection of changing technology, industry trends, and listening habits.
A prominent 2012 study by the Spanish National Research Council analyzed 500,000 songs released between 1955 and 2010 to examine objective musical traits over time. The findings showed a measurable decline in key areas
Timbral variety and harmonic complexity in popular music have declined, with modern music showing less diversity in instrumentation and fewer melodic variations. These changes are attributed to factors like the use of electronic instruments, compression to increase loudness, and a music industry focus on formulaic, mass-produced songs that prioritize marketability over artistic experimentation
One of the oldest recordings of Hip-Hop. This is The Jubalaires, the song is called "Noah", released in 1944, long before Hip-Hop is said to have started (11-August-1973)
The internet has a role to play in Hip-Hop's decline. It's good that it gives many people opportunities but it opened the door for trash music makers. The market is saturated with low quality so it's hard to discover the good artists.
The music of today sounds the same. Artists had different styles, now it's the same thing from artist to artist.