Voice type C). In the lower and upper extremes some contralto voices can sing from D3 (the D below middle C) to B5 (the second B-flat above), one whole step short of the soprano "high C". Contralto tessitura: The contralto voice has the lowest tessitura of the female voices. Contralto subtypes: Contraltos are often broken down into three subcategories: coloratura contralto, lyric contralto, and dramatic contralto. A soprano sfogato is a contralto who has an extended high range reaching the soprano "high C". Countertenor range: The countertenor is the highest male voice. Many countertenor singers perform roles originally written for a castrato
Terminology-oriented database relational database schema, or even an XML schema. Typically, terminology-oriented databases are not bound on a specific database type. Since the information content, which can be stored in object-oriented databases and in relational databases, is identical, data for a terminology-oriented database can be stored theoretically in any type of database as well as in an XML file. Thus, terminology-oriented databases may support several database systems for storing application data. Terminology Databases, when these contain Terms and Vocabularies, these become valuable for Ontologies and in turn ontologies can help process associated triples or complex predicates thus going deeper than hierarchies or