======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '410'
                                          'artist'  'Heldon'
                                     'text_people'  ''
                                         'release'  'Interface'
                                           'title'  'Interface (Live at the Palace 1978) Part 1'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']"
                                     'discogstags'  "['electronic', 'rock', 'prog rock', 'space rock', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '8'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '98.9'
                                             'key'  '11A'
                                        'acoustid'  '39ccee8d-6dec-4922-85ab-fe1cb46b4e07'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Interface'
'TBPM' (BPM (beats per minute))                     '98.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDOR' (Original release time)                      '1977'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Interface (Live at the Palace 1978) Part 1'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Heldon'
'TPE2' (Band/orchestra/accompaniment)               'Heldon'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/8'
'TSO2'                                              'Heldon'
'TSOP' (Performer sort order)                       'Heldon'
'TXXX:ASIN'                                         'B000009TG3'
'TXXX:Acoustid Id'                                  '39ccee8d-6dec-4922-85ab-fe1cb46b4e07'
'TXXX:MusicBrainz Album Artist Id'                  '7d27cd96-7410-4e08-92b6-35255e677b9f'
'TXXX:MusicBrainz Album Id'                         '7ace9b68-ef4f-47b6-a0dd-c5bbf31b5fab'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7d27cd96-7410-4e08-92b6-35255e677b9f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'prog rock', 'space rock', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.599693'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0dbef08e-9836-46a9-ba04-82c70974e513')

========================== row from database ==========================
                                              'id'  1413924
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Heldon - Interface (1977)/07 interface part 1 (live at the palace 1978).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  410
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  13144366
                                           'mtime'  1620736188
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy (1977) 07 interface part (live palace rock cppex progressive;set pl progspace
                                      'tag_artist'  Heldon
                                     'tag_release'  Interface
                                       'tag_title'  Interface (Live at the Palace 1978) Part 1
                                             'bpm'  98.9
                                    'search_title'  '1':10 '1978':7,8 'at':4 'interface':1 'live':2,3 'palace':6 'part':9 'the':5
                                   'search_artist'  'heldon':1
                                  'search_release'  'interface':1
                                     'search_rest'  '1977':2,3 'classicprogpsy':1 'cppex':10 'interface':4 'live':6,7 'palace':8 'part':5 'pl':15 'progressive':11,13 'progspace':16 'rock':9 'set':12,14
                                    'search_combo'  '1':10A '1977':14,15 '1978':7A,8A 'at':4A 'classicprogpsy':13 'cppex':22 'heldon':11B 'interface':1A,12C,16 'live':2A,3A,18,19 'palace':6A,20 'part':9A,17 'pl':27 'progressive':23,25 'progspace':28 'rock':21 'set':24,26 'the':5A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'avant garde', 'progressive rock', 'french', 'psychedelic']
                                        'tag_date'  1977
                                     'discogstags'  ['electronic', 'rock', 'prog rock', 'space rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1620736188.4341931  (2021-05-11 14:29:48)
                             'size'  13144366