func (cf *COMMFrame) ID3v2FrameID() string {
	return "COMM"
}
ID3v2FrameID comment frame ID
package id3v2
import "io"
type Frame interface {
	ID3v2FrameID() string
	ID3v2FrameWriteTo(w io.Writer) (int, error)
}
type TextFrame struct {
	ID   string  
	Text string
}
func (tf *TextFrame) ID3v2FrameID() string {
	return tf.ID
}
func (tf *TextFrame) ID3v2FrameWriteTo(w io.Writer) (int, error) {
	return binaryWriteMany(w, []interface{}{
		uint8(TextEncodingUTF8),
		[]byte(tf.Text),
		uint8(0),
	})
}
type COMMFrame struct {
	Language    string  
	Description string
	Text        string
}