Free scale software for linux

Music::Scales can supply necessary notes / offsets for musical scales.

SYNOPSIS

use Music::Scales;

my @maj = get_scale_notes(Eb); # defaults to major
print join(" ",@maj); # "Eb F G Ab Bb C D"
my @blues = get_scale_nums(bl); # bl,blu,blue,blues
print join(" ",@blues); # "0 3 5 6 7 10"
my %min = get_scale_offsets (G,mm,1); # descending melodic minor
print map {"$_=$min{$_} "} sort keys %min; # "A=0 B=-1 C=0 D=0 E=-1 F=0 G=0"

Given a keynote A-G(#/b) and a scale-name, will return the scale, either as an array of notenames or as a hash of semitone-offsets for each note.

METHODS

get_scale_nums($scale[,$descending])

returns an array of semitone offsets for the requested scale, ascending/descending the given scale for one octave. The descending flag determines the direction of the scale, and also affects those scales (such as melodic minor) where the notes vary depending upon the direction. Scaletypes and valid values for $scale are listed below.

get_scale_notes($notename[,$scale,$descending,$keypref])

returns an array of notenames, starting from the given keynote. Enharmonic equivalencies (whether to use F# or Gb, for instance) are calculated based on the keynote and the scale. Basically, it attempts to do the Right Thing if the scale is an 8-note one, (the 7th in G harmonic minor being F# rather than Gb, although G minor is a flat key), but for any other scales, (Chromatic, blues etc.) it picks equivalencies based upon the keynote. This can be overidden with $keypref, setting to be either # or b for sharps and flats respectively. Cruftiness abounds here.

get_scale_offsets($notename[,$scale,$descending,$keypref])

as get_scale_notes(), except it returns a hash of notenames with the values being a semitone offset (-1, 0 or 1) as shown in the synopsis.

get_scale_MIDI($notename,$octave[,$scale,$descending])

as get_scale_notes(), but returns an array of MIDI note-numbers, given an octave number (-1..9).

get_scale_PDL($notename,$octave[,$scale,$descending])

as get_scale_MIDI(), but returns an array of PDL-format notes.

is_scale($scalename)

returns true if $scalename is a valid scale name used in this module.

Gestalter is a free vector drawing program. The user interface is loosely modelled after the famous Illustrator by Adobe. The central element is the Bezier curve used as a base part for almost every other object.

Complex paths are possible, compound paths can be constructed, grouping of elements is enabled and everything can be screened by a mask. Multiple layers are possible, one can choose between two display modes: a antialiased and a wireframe one. The native storage format is a subset of SVG, printing output is Postscript.

You can place pixel images and transform (rotate, skew, scale, etc.) but not edit them (use GIMP for editing pixel image data). You can open the Postscript output of gestalter in GIMP to use your drawings on The Net.

Xoscope (or oscope) is a digital oscilloscope using input from a sound card or EsounD and/or a ProbeScope/osziFOX.

Xoscopes features include 8 simultaneous signal displays, 1 us/div to 2 s/div time scale, built-in and external math functions including inverse, sum, diff, avg, xy, and FFT, 23 memory buffers, 5 automatic measurements, and file save/load.

jPdfCalendar project allows you to create printable calendar pages as a PDF document from any of your images. The iText library is used to create the PDF itself.
You can add your own "special days" for each month, customize colors, fonts, borders etc.
To create calendar file, you should prepare xml file which structure is described in dtd file. The dtd structure also is described in graphical manner in image file. These information can be found in dtd folder.
To create a sample, use bin/createme.sh script. This script will create sample/calendar_public_en_2007.pdf file according to sample/calendar_public_en.xml project and with images from sample/pictures folder.
Requirements
You need Java 1.5 (or higher) JRE in your OS.
This tool uses iText library (http://www.lowagie.com/iText/) to manipulate of PDFs.
Well-known problem
If image is too large, especially if a hight of image large when page hight, the auto scaling works not properly (the day table is pulled out on the next page). In this case it is necessary to use "scale" tag and set scale factor manually.
Additional tool
Also here is some additional tool, PdfImageRipper. This tool has been created to extract (rip) images from PDF files.
It uses iText functionality to do it and you can think about it as Front-End-Tool. To use this tool, get bin/imgrip.sh script.
Enhancements:
- Moon phases are now displayed in the days table.
- The first day of week is now dependent on the locale, but can be changed in XML.

pyFretCalc is a handy little fret spacing calculator for luthiers (Guitar makers). Simply enter the scale length you want and how many frets, then click on calculate.
To install it, first you have to have the following software installed.
Python http://www.python.org
QT 3 http://www.trolltech.com
PyQt http://www.riverbankcomputing.co.uk
For Linux and other *nixs just untar pyFretCalc-0.0.2.tar.gz to any directory (like $HOME/bin) and run main.py. Future releases will use some sort of packaging.
Windows/OSx users: Follow the same instructions and let me know how it works.
Enhancements:
- Changed to QT3 for the gui

SDL::Video is a SDL perl extension.

SYNOPSIS

$video = new SDL::Video ( -name => pr0n.mpg );

SDL::Video adds support for MPEG video to your SDL Perl application. Videos are objects bound to surfaces, whose playback is controled through the objects interface.

METHODS

SDL::Video::error() returns any error messages associated with playback
SDL::Video::audio(bool) enables or disables audio playback, (on by default)
SDL::Video::video(bool) enables or disable video playback, (on by default)
SDL::Video::loop(bool) enables or disable playback looping (off by default)
SDL::Video::volume(int) set the volume as per the mixer volume
SDL::Video:display(surface) binds the clip to a display surface
SDL::Video::scale([x,y]|[surface]|int) scales the clip by either x,y factors, scales to the image dimensions, or a single scalar.
SDL::Video::play() plays the video clip, call SDL::Video::display() before playing
SDL::Video::pause() pauses video playback
SDL::Video::stop() stops video playback
SDL::Video::rewind() resets the clip to the beginning
SDL::Video::seek(offset) seeks to a particular byte offset
SDL::Video::skip(time) skips to a particular time
SDL::Video::region(rect) takes a SDL::Rect and defines the display area
SDL::Video::frame(int) renders a specific frame to the screen
SDL::Video::info() returns a new SDL::MPEG object reflecting the current status
SDL::Video::status() returns either SMPEG_PLAYING or SMPEG_STOPPED or SMPEG_ERROR

Mauve project is a system for efficiently constructing multiple genome alignments in the presence of large-scale evolutionary events such as rearrangement and inversion.
Multiple genome alignment provides a basis for research into comparative genomics and the study of evolutionary dynamics on a new scale. Aligning whole genomes is a fundamentally different problem than aligning short sequences.
Mauve has been developed with the idea that a multiple genome aligner should require only modest computational resources. It employs algorithmic techniques that scale well in the amount of sequence being aligned.
For example, a pair of Y. pestis genomes can be aligned in under a minute, while a group of 9 divergent Enterobacterial genomes can be aligned in a few hours.
Enhancements:
- This release includes a new, accurate, and sensitive genome alignment algorithm called progressiveMauve.
- Hundreds of genomes can now be aligned, and rearranged segments conserved in subsets of the genomes can be identified.
- A new annotation search can find features by things like gene name and others.