Buzz is a JavaScript library that uses HTML5′s audio element.

Buzz is relatively easy to implement and has an extensive documentation (many audio libraries miss out on this). Buzz also degrades gracefully if the audio tag isn’t supported.

Buzz has an extensive API that allows you to use preload; add autoplay; set the file(s) to loop; etc.

You’d use this library for band websites and websites requiring sound effects, as well as integrating podcasts, and soforth.

• Website: http://buzz.jaysalvat.com/
• Demo: http://buzz.jaysalvat.com/demo

HTML5 Music Player is an HTML5 music player made with jQuery.

Obviously, HTML5 is great for a band website; you can also create podcasts if you remove the pricing.

You can add as many tracks as you like to the player; users can also rate the songs (you have to provide an interface yourself, though).

Overall, the HTML5 Music Player is rather a treat for those willing to sell music.

• Website: http://www.codebasehero.com/2011/06/html-music-player/
• Demo: http://www.codebasehero.com/files/music-player/demo/

Speakker is an audio player and interface built upon the projekktor video player.

What’s awesome about this plugin is not the pictured playlist (Tame Impala!!), but the myriad features you can add with just a few lines of code.

Speakker is a great if you’re making a band website, as those require a playlist.

You can, of course, style the player. You can also add social links.

What’s not to love? Speakker even has a Flash fallback.

• Website: http://www.speakker.com/

Call Loop, it’s the Constant Contact for voice broadcasting. Now you can easily send voice broadcasts and automated phone calls directly to your clients, customers, and prospects in 2 simple steps.

	Automatic List Synchronization - Call Loop syncs with your iContact account, other email autoresponders and soon to be CRM, and eCommerce platform giving you a seamless, fully integrated system to easily weave into voice and text into your already existing systems. As your list grows, Call Loop syncs up and keeps it current.
	Voice and Text Autoresponders - Because Call Loop syncs with your providers and your new subscribers or customers come into your system, you can quickly and easily add a voice and sms text to your followup sequence with ease. (Set it and Forget It)
	Fast, Easy, & Simple 2 Step Setup - Within 60 seconds you can add a voice or text followup or create a highly targeted voice or sms text broadcast to your list in 2 simple steps. No more 15 steps plus hours “setting it up.” It’s a breeze to setup a system you’re going to LOVE.

You can sign up here.

• Website: http://www.callloop.com/

jPlayer is a jQuery plugin that allows easy audio file playback and control. Its main advantage according to the developers is that it can be easily customized with CSS.

For browsers that aren’t compatible with the HTML5 <audio> tag, the plugin automatically switches to using Flash.

jPlayer supports .mp3 and .ogg files, and if you detach the curve_hands.dll, you even can create an audio player with a playlist–or you can customize the demo code. :)

• Website: http://www.happyworm.com/jquery/jplayer/
• Demo: http://www.happyworm.com/jquery/jplayer/latest/demos.htm