User-agent: * 
Sitemap: http://www.howtotuneaguitar.org/sitemap.xml

# disallow all files in these directories
Disallow: /wp-admin/
Disallow: /wp-includes/
Disallow: /trackback/
Disallow: /sandbox/
Disallow: /chord-finder-single/
Disallow: /chord-finder-major/
Disallow: /chord-finder-all/
Disallow: /chord-finder-minor/

User-agent: Googlebot
# disallow all files ending with these extensions
Disallow: /*.js$
Disallow: /*.cgi$
Disallow: */trackback*
Disallow: /z/
Disallow: /wp-*

# allow google image bot to search all images
User-agent: Googlebot-Image
Allow: /*

User-agent: Mediapartners-Google*
Disallow: /category/reviews/