I am a idiot when it comes to music composition so bear with me
My understanding is a key means certain 7 notes are to be played and only those notes unless noted and are called accidentals
WTF happens if no key is stated and composer just notates each note to be played ?
in the 17th and 18th centuries now-familiar forms such as the key signature, note forms, time signatures, etc., began to be standardized. These days it’s difficult to find written music that doesn’t use this format, but some still exist. The plainsong format used for Gregorian chant indicates only melody, while guitar music in "tablature" indicates frets, omitting duration. Almost all other western music uses the same notation, which when you think about it is a remarkable feat.
My understanding is a key means certain 7 notes are to be played and only those notes unless noted and are called accidentals
WTF happens if no key is stated and composer just notates each note to be played ?
in the 17th and 18th centuries now-familiar forms such as the key signature, note forms, time signatures, etc., began to be standardized. These days it’s difficult to find written music that doesn’t use this format, but some still exist. The plainsong format used for Gregorian chant indicates only melody, while guitar music in "tablature" indicates frets, omitting duration. Almost all other western music uses the same notation, which when you think about it is a remarkable feat.

