| Artist | : | Erna Sack vs Flute |
| Title | : | Vocal Range - Alcance Vocal |
| Duration | : | 73 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | Erna Sack vs Flute |
| Title | : | Vocal Range - Alcance Vocal |
| Duration | : | 73 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |