The melody of I Wish I Was A Punk-Rocker (With Flowers In My Hair) by Sandi Thom runs 375 notes across 30 bars, 1:32 long in E at 120 beats per minute. The tab sits almost entirely in the first two frets, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? I Wish I Was A Punk-Rocker (With Flowers In My Hair) chords and lyrics.