# FORMA JAVASCRIPT
def artist=(value)
@artist = value
end
> p1.artist = 90
> p1.artist = 90
> 90

# FORMA JAVA
def setArtist(artist)
@artist = artist
end
> p1.setArtist("holaaaa")
> p1.setArtist("holaaaa")
> "holaaaa"

def artist?
return true
end