Consider the following statements regarding Karnataka music compositions.
1. The vocal form `rangam-tanam-pallavii is generally the main item in Karnataka music concerts.
2. The Kriti is perhaps the most popular form in Karnataka music.
3. The Tillana is the south Indian musical counterpart of the north Indian tarana - rhythmic and fast in tempo.
4. In Karnataka music, there was no influence of bhakti in its development.
Which of the statements given above are correct?