======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '192'
                                          'artist'  'Chenard Walcker'
                                     'text_people'  'Chenard Walcker'
                                         'release'  'Rain'
                                           'title'  'Old Man River'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['test', 'netlabel', 'electronic', 'wm recordings', 'funk']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-collage'
                                             'bpm'  '145.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Rain'
'TBPM' (BPM (beats per minute))                     '145.8'
'TCOM' (Composer)                                   'Chenard Walcker'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-collage'
'TCOP' (Copyright message)                          'http://creativecommons.org/licenses/sampling+/1.0/'
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'WM Recordings'
'TIT2' (Title/songname/content description)         'Old Man River'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chenard Walcker'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['test', 'netlabel', 'electronic', 'wm recordings', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.659276'
'WXXX:'                                             WXXX(encoding=<Encoding.UTF16: 1>, desc='', url='http://www.wmrecordings.com')

========================== row from database ==========================
                                              'id'  730904
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/wm002 - chenard walcker - rain/wm002_02_chenard_walcker-old_man_river.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  192
                                           'genre'  electronic-experimental-collage
                                        'filesize'  4629367
                                           'mtime'  1636920764
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm wm002 chenard walcker rain wm002_02_chenard_walcker old_man_river electronic experimental collage
                                      'tag_artist'  Chenard Walcker
                                     'tag_release'  Rain
                                       'tag_title'  Old Man River
                                             'bpm'  145.8
                                    'search_title'  'man':2 'old':1 'river':3
                                   'search_artist'  'chenard':1 'walcker':2
                                  'search_release'  'rain':1
                                     'search_rest'  '02':6 'chenard':2,7 'collage':14 'electronic':12 'experimental':13 'man':10 'old':9 'rain':4 'river':11 'walcker':3,8 'wm002':1,5
                                    'search_combo'  '02':12 'chenard':4B,8,13 'collage':20 'electronic':18 'experimental':19 'man':2A,16 'old':1A,15 'rain':6C,10 'river':3A,17 'walcker':5B,9,14 'wm002':7,11
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['test', 'netlabel', 'electronic', 'wm recordings', 'funk']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636920764.1826224  (2021-11-14 21:12:44)
                             'size'  4629367