======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '183'
                                          'artist'  'Emeralds'
                                     'text_people'  ''
                                         'release'  'Bleep: 100 Tracks / 2010'
                                           'title'  'Double Helix'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['drone', 'electronic', 'psychedelic', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic', 'italodance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '26'
                                      'tracktotal'  '100'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '132.3'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bleep: 100 Tracks / 2010'
'TBPM' (BPM (beats per minute))                     '132.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Double Helix'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Emeralds'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '26/100'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:TYPE'                                         'Album'
'TXXX:discogstags'                                  ['electronic', 'italodance']
'TXXX:lastfmtags'                                   ['drone', 'electronic', 'psychedelic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.37 dB'
'TXXX:replaygain_track_peak'                        '0.417318'

========================== row from database ==========================
                                              'id'  1373980
                                            'path'  /data/Music/Bulk/00poprockelectronic/Velour - Bleep- 100 Tracks - 2010 (2011)/026 Emeralds - Double Helix.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  183
                                           'genre'  electronic
                                        'filesize'  7335348
                                           'mtime'  1636914517
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Velour (2011) 026 electronic
                                      'tag_artist'  Emeralds
                                     'tag_release'  Bleep: 100 Tracks / 2010
                                       'tag_title'  Double Helix
                                             'bpm'  132.3
                                    'search_title'  'double':1 'helix':2
                                   'search_artist'  'emeralds':1
                                  'search_release'  '100':3 '2010':5 'bleep':1,2 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 '2011':3,4 'electronic':5 'velour':2
                                    'search_combo'  '00poprockelectronic':9 '100':6C '2010':8C '2011':11,12 'bleep':4C,5C 'double':1A 'electronic':13 'emeralds':3B 'helix':2A 'tracks':7C 'velour':10
                                    'tag_tracknum'  26
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['drone', 'electronic', 'psychedelic', 'experimental', 'ambient']
                                        'tag_date'  2011
                                     'discogstags'  ['electronic', 'italodance']

============================== file details ==============================
                                           'mtime'  1636914516.658605  (2021-11-14 19:28:36)
                             'size'  7335348