The Beiguan opera in Taiwan after the 21st century is commonly referred to as Luandanxi; but in fact, Beiguan opera can be divided into two categories: "amateur disciples’ opera" and "professional Luandan opera". The former is performed by amateur disciples for entertainment and to express gratitude to the gods, and  teachers are usually hired to teach the disciples to play the opera. The latter is the real Luandan opera performed by professional opera troupes, with a slightly higher level of performance.

Beiguan opera belongs to the Banghuang opera genre, and the language used for singing and speaking is commonly referred to as "Mandarin" within the trade, but pronounced with a Minnanese accent. It is further divided into two systems: the "Fulu" system of the Bangzi style and the "Xilu" system of the Pihuang style. The lead instrument is the Huqin, and the rhythms of the gongs and drums differ slightly. The melodies and tunes also have their own unique characteristics.

North music pieces, also known as “Paizi”, are mainly played with suona, which is characterized by the music style of "qupai", featuring suona as the lead instrument and accompanied by drums and gongs.

In Paizi performances, there are often interludes known as "ru-puo", which are a repetitive sequence of drums and gongs that are inserted into the music of the Paizi. This technique is called "gua-nong" and can also include sections that are composed solely of drum and gong beats. Between each piece, there are usually transitions created by connecting the drums and gongs, and within a set of Paizi, transitions can also be achieved by using "gua-nong".

Most North music pieces have lyrics that can be sung, and they are used in North opera performances, although there are few actual singers who know how to sing these songs.

Some common North music pieces include "Feng Ru Song," "You Jiang Ling," and "Huo Shen Zhou."

Xì qǔ (or Yaoqu) refers to a type of singing in Beiguan Opera that is led by a vertical fiddle (Erhu) and accompanied by other strings and wind instruments. The singer uses a bamboo clapper to keep the rhythm.

Xì qǔ is often used in the construction of a series of tubes in Beiguan Opera, such as "Zhao Jun He Fan",  which tells the story of Emperor Yuan of the Han Dynasty sending Wang Zhaojun out of the fortress to make peace with the Huns.  It is constructed with the Xì qǔ piece "Zhao Jun He Fan" combined with percussion and spoken parts.

Famous Xì qǔ pieces include "Zhao Jun He Fan" and "Wu Pen".

"Xuanpu," refers to a type of music score used in Chinese opera to connect scenes or be interwoven with the singing of "Xì qǔ" or "Xiao qu." It is also called "chuan" or "guochangpu." In addition to being performed as a single piece, it can also be played as a part of a suite. The origin of Xuanpu is complicated, but many are based on folk melodies and can be played using a variety of traditional Chinese musical instruments. Xuanpu is often interspersed with "Xiqu" or "Xiao qu," and together they create an artistic and musical experience.