Heavy metal music
Critics disagree over who can be thought of as the first heavy metal band. Most credit either Led Zeppelin or Black Sabbath, with American commentators tending to favour Led Zeppelin and British commentators tending to favour Black Sabbath, though many give equal credit to both. A few commentators—mainly American—argue for other groups including Iron Butterfly, Steppenwolf or Blue Cheer. Deep Purple, the third band in what is sometimes considered the "unholy trinity" of heavy metal (Black Sabbath, Led Zeppelin, and Deep Purple), despite being slightly older than Black Sabbath and Led Zeppelin, fluctuated between many rock styles until late 1969 when they took a heavy metal direction.
Nepalese rock
The scene was set for the bands and artists to record and perform their original compositions and there was also a change in direction in relation to the music that newer bands were producing. Newaz is considered to be the first hard-rock band and released their debut album in 1991. This was shortly followed by Cobweb releasing their debut album called "Anjaan" in 1993. They are still active and releasing albums, although they are mostly confined to pub concerts. A few years later in 1996, Milestone, a band from Pokhara, released their debut album - "Milestone". The album contained 8 tracks out of which 6 were rock ballads but the other two "Adhuro Prem" and "Mayalu" were on the heavier side with a lot of guitar distortions, sweeping solos and screaming vocals. Music video for Adhuro Prem was also aired on limited Nepali television channels at the time. That type of music was unheard in the mainstream music industry and hence the track nor the album was fortunate enough to make a break in the industry but undoubtedly Milestone is considered as the first metal band in Nepal to record and produce original metal tracks and a music video, which can be found on YouTube.