<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

  <xsd:element name="SONG" type="SongType"/>

  <xsd:complexType name="ComposerType">
    <xsd:sequence>
      <xsd:element name="NAME" type="xsd:string"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:complexType name="ProducerType">
    <xsd:sequence>
      <xsd:element name="NAME" type="xsd:string"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:complexType name="SongType">
    <xsd:sequence>
      <xsd:element name="TITLE"     type="xsd:string"/>
      <xsd:element name="COMPOSER"  type="ComposerType"
                   maxOccurs="unbounded"/>
      <xsd:element name="PRODUCER"  type="ProducerType"
                   minOccurs="0" maxOccurs="unbounded"/>
      <xsd:element name="PUBLISHER" type="xsd:string"
                   minOccurs="0"/>
      <xsd:element name="LENGTH" type="xsd:string"/>
      <xsd:element name="YEAR"   type="xsd:string"/>
      <xsd:element name="ARTIST" type="xsd:string"
                   maxOccurs="unbounded"/>
      <xsd:element name="PRICE" type="xsd:string"
                   minOccurs="0"/>
    </xsd:sequence>
  </xsd:complexType>

</xsd:schema>
