What is the general market value for this Unknown Artist item?

Based on current listings for similar items, this piece is valued at $15.

Is this item categorized as music?

No, the genre for this item is specifically listed as Non-Music.

The artist is listed as Unknown Artist.

Name: Unknown Artist - Nachtigallschlag III. / Nachtigallschlag VI.
Brand: Unknown Artist

Non-Music

Genre · Non-Music

Used

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New / Sealed

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What is the general market value for this Unknown Artist item?: Based on current listings for similar items, this piece is valued at $15.
Is this item categorized as music?: No, the genre for this item is specifically listed as Non-Music.
Who created the Nachtigallschlag III. / VI.?: The artist is listed as Unknown Artist.