Author's Music

Not much to it, I write, read, produce music and make a little art.
The following is an encrypted message, encoded using a keyword.

AQ TFF PQTNQRO T FKJI QAGR TIK. T QAGR HRSKNR A CJRW OTYFAIDQ KN PUJPRQP. EKJPRMURJERP WRNR RXLREQRO. NRPLKJPAHAFAQY WTP BUPQ T FKKPR FRTS QDNKWJ PLTQ SNKG GY GKUQD. QDR EUNQTAJ ETJ EFKPR PK STPQ. FACR QDR NRTLRN AQ WTQEDRO GR. WTAQAJI SKN QDR KLLKNQUJAQY QK RTQ GY PKUF KN LRNDTLP AQ BUPQ WTJQRO QDR QNUQD TP GUED TP A OAO. SKN WDTQ A SKUJO QDTQ OTY WKUFO KS GTOR TJY GTJ GTO.