Let’s Ask Google
1. What notes are in a train horn? C - D# - F# - A# - C
2. What are the sound frequency of bell? From D2 to C to D6
3. What notes are in a train whistle? A# - C# - D# - G
4. What chord do train horns make? = These are the notes in the chord: C - E - G - A
Hope to see you out rail-fanning. Gary 🚂