自彈自唱 [－弹－－]

Jyutping zi6 daan2 zi6 coeng3
Pinyin zì tán zì chàng

Definitions (Wiktionary)
  1. phrase, idiomatic
    to sing and accompany oneself on an instrument
  2. phrase, derogatory, figuratively, idiomatic
    to orchestrate everything on one's own; to control the scene

自彈自唱 [－弹－－]

Jyutping zi6 taan4 zi6 coeng3
Pinyin zì dàn zì chàng

Definitions (粵典–words.hk)
  1. 動詞
    自己​幫​自己​伴奏​，​一路​彈樂器​一路​唱歌
    to sing and play an instrument simultaneously
    • 佢作咗首歌參賽，喺台上拎支結他自彈自唱。
      佢作咗首歌参赛，喺台上拎支结他自弹自唱。
      keoi5 zok3 zo2 sau2 go1 caam1 coi3, hai2 toi4 soeng6 ling1 zi1 git3 taa1 zi6 taan4 zi6 coeng3.
      Composing a song for a competition, he played the guitar singing it on the stage.
Examples (粵典–words.hk)
  1. Cantonese
    个女仔拎住支结他自弹自唱，一开口就技惊四座。
    個女仔拎住支結他自彈自唱，一開口就技驚四座。
    go3 neoi5 zai2 ling1 zyu6 zi1 git3 taa1 zi6 taan4 zi6 coeng3, jat1 hoi1 hau2 zau6 gei6 ging1 sei3 zo6.
    • The girl played the guitar and sang. As she started, the audience was stunned.
  2. Cantonese
    佢作咗首歌参赛，喺台上拎支结他自弹自唱。
    佢作咗首歌參賽，喺台上拎支結他自彈自唱。
    keoi5 zok3 zo2 sau2 go1 caam1 coi3, hai2 toi4 soeng6 ling1 zi1 git3 taa1 zi6 taan4 zi6 coeng3.
    • Composing a song for a competition, he played the guitar singing it on the stage.