CuteSITE Builder provides several built in tools (previously called Web Gems in Trellix Web) that allows you to insert a music file to be played, or a PC file to be downloaded, or a video file to be viewed.
There are also many web sites that provide free, sample program code that can be inserted into a web page -- from games, to having snow falling across your web page, to simply displaying the current date and time.
1. Use the Trellix/CSB 'Pass Thru' technique (which is good for short one or two line snippets of code), or
2. Use the 'Insert Your Own HTML' (called 'Build your own Web Gem' in Trellix)