Sean McDonald has compiled these recent posts from the Heidelblog…
On Psalmody:
http://heidelblog.net/2014/09/what-did-the-divines-mean-by-psalms/
http://heidelblog.net/2014/09/psalms-hymns-spiritual-songs-and-instruments-in-the-latin-bibles/
http://heidelblog.net/2014/09/calvin-we-sing-psalms-in-public-worship/
On Musical Instruments:
http://heidelblog.net/2014/09/the-1559-geneva-bible-on-musical-instruments/
http://heidelblog.net/2014/09/aquinas-the-use-of-instruments-in-public-worship-is-judaizing/
http://heidelblog.net/2014/09/moral-courage-in-defense-of-that-vital-truth/
http://heidelblog.net/2014/09/calvin-on-instruments-not-given-for-us-to-imitate/
Thanks Sean McDonald!