Pumilio is a free and open source PHP/MySQL application for the management of sound archives and the visualization and manipulation of sound files. The system allows the user to load sound files in many formats, see the spectrogram of the sound, select regions of the sound for further analysis and insertion in a database, filtering, and many other manipulations.

MusicBrainz is an open music encyclopedia that collects music metadata and makes it available to the public.

MusicBrainz aims to be:

The ultimate source of music information by allowing anyone to contribute and releasing the data under open licenses.
The universal lingua franca for music by providing a reliable and unambiguous form of music identification, enabling both people and machines to have meaningful conversations about music.
Like Wikipedia, MusicBrainz is maintained by a global community of users and we want everyone — including you — to participate and contribute

Welcome to the Gersic.com free audio plugin database, the largest online database of free audio plugins. We list nearly 2000 free VST plugins, free DirectX plugins, RTAS, AU, and more from developers all over the world.

SQLAlchemy is the Python SQL toolkit and Object Relational Mapper that gives application developers the full power and flexibility of SQL.

It provides a full suite of well known enterprise-level persistence patterns, designed for efficient and high-performing database access, adapted into a simple and Pythonic domain language.

SQLAlchemy considers the database to be a relational algebra engine, not just a collection of tables. Rows can be selected from not only tables but also joins and other select statements; any of these units can be composed into a larger structure. SQLAlchemy's expression language builds on this concept from its core.

Object Relational Mappng

PsycINFO is the database to use for literature searches about psychology, psychiatry, behavioral science (including animal behavior), and mental health. The things you already know how to do probably include keyword searching and using FindIt to link to the full text of articles. Using the limits can make your search more precise.

MailSteward is an e-mail archiving solution that imports your e-mail into a database of its own and allows for searching, sorting and exporting of your e-mail messages. With MailSteward you can import POP, IMAP and .Mac accounts as well as mbox files created in Microsoft Entourage.

Eventually, the most successful music companies may not be the ones that create, play, or sell music. Rather, they may be the ones to collect the most music data. In this race, Somerville, Massachusetts-based the Echo Nest is ahead.

This is South, intelligent schema and data migrations for  Django projects.

data, big data, databases, relational databases and other foundational issues

The relational database model has prevailed for decades, but a new type of database — known as NoSQL — is gaining attention in the enterprise. Here’s an overview of its pros and cons.

Free & open source, high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.

Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering.

MongoDB (from "humongous") is a scalable, high-performance, open source, document-oriented database. Written in C++

Apache CouchDB, commonly referred to as CouchDB, is an open source document-oriented database written in the Erlang programming language. It borrows from NoSQL and is designed for local replication and to scale horizontally across a wide range of devices

open source, high-performance, schema-free, document-oriented database written in the C++ programming language.[1] The database is document-oriented so it manages collections of JSON-like documents.

Data Crow is the ultimate media cataloger and media organiser. Always wanted to manage all your collections in one product? You want a product you can customize to your needs? Your search ends here! Using Data Crow allows you to create a huge database containing all your collected items. You can use the excellent online services to retrieve the information instead of typing all the information yourself.

Are you looking for an easy way to create forms and either submit the data to an email address, store it in a mySQL database or do both at the same time?

SQLite Database browser is a light GUI editor for SQLite databases, built on top of Qt. The main goal of the project is to allow non-technical users to create, modify and edit SQLite databases using a set of wizards and a spreadsheet-like interface.

Here you will find hundreds of problems. They are like the ones used during programming contests, and are available in HTML and PDF formats. You can submit your sources in a variety of languages, trying to solve any of the problems available in our database.

SQLite is a software library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine. SQLite is the most widely deployed SQL database engine in the world. The source code for SQLite is in the public domain.

Envelope Index (see “What’s in your Mail folder?”) is an SQLite database that stores key information about your emails. Over time it can get terminally corrupted (see “The dreaded ‘your home directory is full’ message”).

The ISFDB is a community effort to catalog works of science fiction, fantasy, and horror. It links together various types of bibliographic data: author bibliographies, publication bibliographies, award listings, magazine content listings, anthology and collection content listings, and forthcoming books.

SQLite Database Browser is a freeware, public domain, open source visual tool used to create, design and edit database files compatible with SQLite. It is meant to be used for users and developers that want to create databases, edit and search data using a familiar spreadsheet-like interface, without the need to learn complicated SQL commands

Hibernate is a powerful, high performance object/relational persistence and query service. Hibernate lets you develop persistent classes following object-oriented idiom - including association, inheritance, polymorphism, composition, and collections. Hibernate allows you to express queries in its own portable SQL extension (HQL), as well as in native SQL, or with an object-oriented Criteria and Example API.

HadoopDB is comprised of Postgres on each node (database layer), Hadoop/MapReduce as a communication layer that coordinates the multiple nodes each running Postgres, and Hive as the translation layer. The result is a shared-nothing parallel database, that business analysts can interact with using a SQL-like language