======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '546'
                                          'artist'  'Traveler'
                                     'text_people'  ''
                                         'release'  'Galactic Rest Area'
                                           'title'  'Chorus of Singing Stars'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['hardcore', 'melodic hardcore', 'hardcore punk', 'heavy metal']"
                                     'discogstags'  "['hard rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '135.184'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Galactic Rest Area'
'TBPM' (BPM (beats per minute))                     '135.184'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Chorus of Singing Stars'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Traveler'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['hard rock', 'rock']
'TXXX:lastfmtags'                                   ['hardcore', 'melodic hardcore', 'hardcore punk', 'heavy metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.49 dB'
'TXXX:replaygain_track_peak'                        '0.624635'

========================== row from database ==========================
                                              'id'  1396904
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Traveler - Galactic rest area/Traveler - Galactic Rest Area - 02 - Chorus of Singing Stars.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  546
                                           'genre'  eid-metal
                                        'filesize'  21842810
                                           'mtime'  1620301466
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal rest area 02 eid metal
                                      'tag_artist'  Traveler
                                     'tag_release'  Galactic Rest Area
                                       'tag_title'  Chorus of Singing Stars
                                             'bpm'  135.184
                                    'search_title'  'chorus':1 'of':2 'singing':3 'stars':4
                                   'search_artist'  'traveler':1
                                  'search_release'  'area':3 'galactic':1 'rest':2
                                     'search_rest'  '00dwimp':1 '00metal':2 'area':4 'eid':5 'metal':6 'rest':3
                                    'search_combo'  '00dwimp':9 '00metal':10 'area':8C,12 'chorus':1A 'eid':13 'galactic':6C 'metal':14 'of':2A 'rest':7C,11 'singing':3A 'stars':4A 'traveler':5B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['hardcore', 'melodic hardcore', 'hardcore punk', 'heavy metal']
                                        'tag_date'  2006
                                     'discogstags'  ['hard rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620301466.0930054  (2021-05-06 13:44:26)
                             'size'  21842810