I present my submission MM1 to the Chord Estimation Task of the 2010 Music Information Retrieval Evaluation eXchange (MIREX 2010). The front-end chroma generation is based on a new implementation of NNLS Chroma as a Vamp plugin. The higher level model is very simple, and a very similar method is implemented as the nonHMM version of the Chordino plugin. These two plugins are now available at htt...

A non-Hamiltonian cycle C in a graph G is extendable if there is a cycle C' in G with V(C')= V(C) with one more vertex than C. For any integer k~>0, a cycle C is k-chord extendable if it is extendable to the cycle C' using at most k of the chords of the cycle C. It will be shown that if G is a graph of order n, then 6(G)>3n/4-1 implies that any proper cycle is 0-chord extendable, 6(G)>5n/9 impl...

In this paper, we propose a new system design framework for large vocabulary automatic chord estimation. Our approach is based on an integration of traditional sequence segmentation processes and deep learning chord classification techniques. We systematically explore the design space of the proposed framework for a range of parameters, namely deep neural nets, network configurations, input fea...

For the MIREX 2010 Audio Chord Extraction task, we submitted a total of four systems. Our base system is a trainable chord recognizer based on two-band chroma representations and using a Structured SVM classifier to replace the more familiar hidden Markov model. We submit two versions of this system, one which transposes all training data through all 12 possible chords to maximize the training ...

We propose a method for the problem of real time chord accompaniment of improvised music. Our implementation can learn an underlying structure of the musical performance and predict next chord. The system uses Hidden Markov Model to find the most probable chord sequence for the played melody and then a Variable Order Markov Model is used to a) learn the structure (if any) and b) predict next ch...

We present a computational framework for chord invention based on a cognitive-theoretic perspective on conceptual blending. The framework builds on algebraic specifications, and solves two musicological problems. It automatically finds transitions between chord progressions of different keys or idioms, and it substitutes chords in a chord progression by other chords of a similar function, as a ...

The Chord system is a decentralized peer-to-peer mechanism designed to store and search key/value pairs. The peers in a Chord overlay network are represented on a circle, whereas each peer has to maintain log 2 (n) neighbors to guarantee a stable overlay structure in the presence of high churn rates. A single peer, however, does not know the current size n of the Chord ring. Choosing a constant...

Hsp90-mediated function of NLR receptors in plant and animal innate immunity depends on the cochaperone Sgt1 and, at least in plants, on a cysteine- and histidine-rich domains (CHORD)-containing protein Rar1. Functionally, CHORD domains are associated with CS domains, either within the same protein, as in the mammalian melusin and Chp1, or in separate but interacting proteins, as in the plant R...

We present our submission MD1 to the Chord Estimation Task of the 2010 Music Information Retrieval Evaluation eXchange (MIREX 2010). The front-end chroma generation is based on a new implementation of NNLS Chroma 1 as a Vamp plugin. The higher level model is implemented in Matlab as a dynamic Bayesian network (DBN) with extensive context modelling (metric position, key, chord and bass), leading...

Chord diagrams on circles and their intersection graphs (also known as circle graphs) have been intensively studied, and have many applications to the study of knots and knot invariants, among others. However, chord diagrams on more general graphs have not been studied, and are potentially equally valuable in the study of spatial graphs. We will define chord diagrams for planar embeddings of pl...