Tin whistle part of several folk traditions. Whistles are a prevalent starting instrument in English traditional music, Scottish traditional music and Irish traditional music, since they are often cheap (under US$10), relatively easy to start with (no tricky embouchure such as found with the flute), and the fingerings are nearly identical to those on the traditional six holed flute (Irish flute, baroque flute). The tin whistle is a good starting instrument to learn the uilleann pipes, which has similar finger technique, range of notes and repertoire. The tin whistle is the most popular instrument in Irish traditional music today. In recent years
Esri TIN Esri TIN The Esri TIN format is a popular yet proprietary geospatial vector data format for geographic information system (GIS) software for storing elevation data as a triangulated irregular network. It is developed and regulated by Esri. The Esri TIN format can spatially describe elevation information including breaking edge features. Each points and triangle can carry a tag information. A TIN stored in this file format can have any shape, cover multiple regions (e.g. islands) and contain holes (e.g. lakes). In 2007 a reverse-engineered description of Esri TIN format came to light. Since then, the Virtual Terrain Project, an open-source