5 pages | PDF | 1.5 MB"Teacher" by Jethro Tull is an upbeat rock song composed by lead singer and songwriter Ian Anderson. The song is set in a time signature of 4/4, and is written in the key of D♭ major, while the chorus dips into B♭ minor. With a total of 62 measures, "Teacher" is a vibrant and energetic piece that drives forward with a catchy hook and tongue-in-cheek lyrics. The drums and bass drive the song forward, while the crunchy electric guitar riffs provide the melody, and Anderson's relaxed vocal delivery gives the track a sense of effortless cool. The lyrics are a lighthearted take on relationships, as Anderson advises his listener to take lessons from the past and learn from the mistakes of others. Overall, "Teacher" is a fun, energetic rock song with a catchy hook and clever lyrics.