Might be related to your component, but probably just the usual cpt issues.
Do you have a theme template called single-music.php so that WP can display it? 
Do you have a pre_get_posts filter in your theme/functions.php or plugin file so that WP knows you want a cpt? 
// so music cpt is included in cat or tag calls
function stoi_query_post_type($query) {
  if(is_category() || is_tag()) {
    $post_type = get_query_var('post_type');
	if($post_type)
	    $post_type = $post_type;
	else
	    $post_type = array('post','music');
    $query->set('post_type',$post_type);
	return $query;
    }
}
add_filter('pre_get_posts', 'stoi_query_post_type');
		
	 
	
	
	
 
		
			
	
	
		
		I dont have a pre_get_posts for other post types I have defined, but those also do not have a bp component associated with them (those display just fine). I do not have a single-music.php file nor do I have a single-track.php file, however when I change my slug to track all is good. Like I said all of this worked in a previous theme I was using but now that I am writing a new theme things are not working for my single posts only for this custom post type which has an associated bp component and a page called music which this component is associated with.
Thanks,
Jesse
		
	 
	
	
	
 
		
			
	
	
		
		I found that my custom post type and page Im using for the archive have the same slug. I have read in various places that this commonly causes a 404 error. I added a submenu item for single posts to display under the pages slug like so.
$single_item_link = $bp->current_item;
if ( bp_is_my_custom_component() && bp_is_single_item() ) {
	// Reset sub nav
	$sub_nav = array();
	
	// Add single music page but dont display in navigation
	$main_nav = array(
		'name'                => __( 'Single Music', 'bp-music' ),
		'slug'                => $single_item_link,
		'position'            => -1, // Do not show in BuddyBar
		'screen_function'     => 'custom_component_screen_single',
		'default_subnav_slug' => $this->default_extension,
		'item_css_id'         => $this->id
	);
}
This menu item loads a function in the screens file of the component
function custom_component_screen_single() {
	
	if ( ! bp_is_single_item() )
		return false;
	
	$bp = buddypress();
	do_action( 'custom_component_screen_single' );
	
	bp_core_load_template( apply_filters( 'custom_component_screen_single', 'custom-component/single/home' ) ); //this loads a template file within the template folder of the component or within the theme
	
}
And for now all is good. I would still like to find a way to load my custom taxonomy into the permalink structure so things would look like this.
mydomain.com/custom-component/custom-taxonomy/single-item
If anyone has any ideas on how I can get this to work as well please let me know. My guess is I could make another menu item to capture that instance and if the genre exists then it loads a template file. Then I need to find a way to make sure a single item and a custom taxanomy dont end up with the same name.
Thanks,
Jesse