Latvian language
Upper Latvian dialect is spoken in Eastern Latvia. It is set apart from rest of the Latvian by number of phonetic differences. The dialect has two main varieties – Selonian and Non-Selonian. There is a standard language, the Latgalian language, which is based on deep Non-Selonian varieties spoken in south of Latgale. The term "Latgalian" is sometimes also applied to all Non-Selonian varieties or even the whole dialect. However, it is unclear if it is accurate to use the term for any varieties besides the standard language. While the term may refer to varieties spoken in Latgale or by Latgalians, not all speakers identify as speaking Latgalian, for example, speakers of deep Non-Selonian varieties in Vidzeme explicitly deny speaking Latgalian.
Livonia
The historical land of Livonia has been split between Latvia and Estonia ever since. The Livonian language is spoken by fewer than 100 individuals as a second language, and is understood to be fast approaching extinction. The last native Livonian speaker died in June 2013.
The anthem (unofficial) of Livonians is "Min izāmō, min sindimō" sharing the melody of Finnish and Estonian anthems.