vertical flute (noun)

1. The elven bard enchanted everyone in the mystical realm with her ethereal melodies on the vertical flute.

2. In the futuristic world of flying cities, the alien species communicated through a unique variation of the vertical flute.

3. The minimalist house featured a stunning focal point - a display of vertical flutes arranged in a symmetrical pattern on the wall.

4. As the eerie music emanated from the haunted attic, the unsuspecting visitors felt a shiver down their spines, unaware that the source was a cursed vertical flute.