Sona's classic splash art from the 3.02 patch was drawn by Shilin Huang.
The name "Sona" is derived from the Latin prefix denoting sound, "son-", attached to the Latin suffix for feminine objects, "a".
Sona's name in Hindi means "gold".
A "maven" is someone highly skilled in a field who wishes to teach others in said field.
Sona is the second champion to use the stance mechanic, the first being Udyr.
The name of Sona's weapon, the "Etwahl", is pronounced the same as the French word "étoile", which means "star".
The Etwahl is likely a reference to the guzheng, a Chinese string instrument.
"Etwahl" is also an anagram for "wealth", symbolizing her adoptive mother's only notable quality, as well as a reminder that it's Sona's source of power.
A power chord is a type of chord that consists of a doubled root note and the fifth. It's a key element of many styles of rock music.
Sona is a mute, yet can talk to the Summoner. She claims that only "you" can hear her and says the phrase "From my mind, to yours." This indicates the mental connection between a Summoner and their Champion, which is a recurring feature in League Judgements.
Her appearance and the general musical theme bears similarity to Hatsune Miku.
Each of Sona's abilities have varying ambient music, playing whenever its aura is active.
When Hymn of Valor is the active aura, the League of Legends theme can be heard from the Etwahl.
Sona has the lowest health of any champion at level 1 with 410 HP and also the lowest at level 18 with 1600 HP.
She also has the lowest base armor at level 1 with 9.3.
Quotes
The tune of Sona's taunt has the same tune of the announcer's "Finish him!" from the Mortal Kombat series.
Skins
Sona's classic skin bears striking similarities to Hatsune Miku, a popular Japanese singing synthesizer application with a human persona.
In the Chinese art for Pentakill Sona, the sparks coming from her instrument appear to spell the word 'FAME'.
Muse Sona is based on the Muses, figures from Greek mythology that were goddesses or spirits associated with memory and the arts. Many performers wrote songs in dedication to the Muses.
Silent Night Sona is a reference to the Christmas carol "Silent Night". It may also relate to the origins of the song, which was first played on a guitar.
If the joke command is alternated with Kog'Maw in proximity with his Reindeer skin and her using her Silent Night skin, they will both play and sing a section of 'Deck the Halls' together.
Guqin Sona is a direct reference to the guqin, a seven-string Chinese instrument. This skin was released in celebration of the Chinese New Year.
Arcade Sona is a reference to many '80s and early '90s video game effects.
The effect fromCrescendo is a direct reference to Dance Dance Revolution. The sequence is (↑→)(←)(↑→)(↑)(↑)(↑)
Relations
Sona is part of the band Pentakill, along with other members Mordekaiser, Karthus, Yorick, and Olaf. The band is reported to have been a huge success all across Valoran. Sona herself was one of the founders of the band, along with Mordekaiser.
In Sona's reflection during her League Judgement it is stated that her adoptive mother, Lestara Buvelle, was killed by the Etwahl.
Sona's first years were spent in Ionia, yet, since her adoption she has become a resident of Demacia.