======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '278'
                                          'artist'  'Katie Melua'
                                     'text_people'  'Mike Batt'
                                         'release'  'Piece by Piece'
                                           'title'  'On the Road Again'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'pop', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '12'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal;ifs-songwriter-pop'
                                             'bpm'  '129'
                                             'key'  '3A'
                                        'acoustid'  '3760fe37-360e-4d0f-a252-935213634966'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Piece by Piece'
'TBPM' (BPM (beats per minute))                     '129'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-vocal', 'ifs-songwriter-pop']
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-09-26'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['percussion', 'Martin Ditcham'], ['percussion', 'Chris Karan'], ['membranophone', 'Henry Spinetti'], ['solo and violin', "Mick D'arcy"], ['solo and trumpet', 'Dominic Glover'], ['bass', 'Tim Harries'], ['orchestra', 'The Irish Film Orchestra'], ['guitar family', 'Jim Cregan'], ['guitar family', 'Katie Melua'], ['guitar family', 'Chris Spedding']])
'TIT2' (Title/songname/content description)         'On the Road Again'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Katie Melua'
'TPE2' (Band/orchestra/accompaniment)               'Katie Melua'
'TPE3' (Conductor/performer refinement)             'Mike Batt'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dramatico'
'TRCK' (Track number/Position in set)               '8/12'
'TSO2'                                              'Melua, Katie'
'TSOP' (Performer sort order)                       'Melua, Katie'
'TSRC' (ISRC (international standard recording code))  'GBDVY0500065'
'TXXX:ASIN'                                         'B000ALLLHU'
'TXXX:Acoustid Id'                                  '3760fe37-360e-4d0f-a252-935213634966'
'TXXX:Artists'                                      'Katie Melua'
'TXXX:BARCODE'                                      '802987001922'
'TXXX:CATALOGNUMBER'                                'DRAMCD0007'
'TXXX:MusicBrainz Album Artist Id'                  '39e32995-6515-40b2-a6f0-841524047edc'
'TXXX:MusicBrainz Album Id'                         'f0d6c31f-8f9f-47fe-b5f5-3b96746b48fa'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '39e32995-6515-40b2-a6f0-841524047edc'
'TXXX:MusicBrainz Release Group Id'                 'fb868322-3b3b-3f20-b880-3ed4aa926b69'
'TXXX:MusicBrainz Release Track Id'                 '64012c0a-7190-3cc2-b1dc-7cac254cbdc5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'pop', 'singer songwriter']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.73 dB'
'TXXX:replaygain_track_peak'                        '0.641579'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd589fba2-69e2-40eb-9ce7-c10414783229')

========================== row from database ==========================
                                              'id'  676652
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Katie Melua/08_katie_melua_-_on_the_road_again.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  278
                                           'genre'  prerock-jb-jazz-vocal;ifs-songwriter-pop
                                        'filesize'  6752663
                                           'mtime'  1620530645
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 08_katie_melua_ _on_the_road_again prerock jb jazz vocal;ifs songwriter pop
                                      'tag_artist'  Katie Melua
                                     'tag_release'  Piece by Piece
                                       'tag_title'  On the Road Again
                                             'bpm'  129.0
                                    'search_title'  'again':4 'on':1 'road':3 'the':2
                                   'search_artist'  'katie':1 'melua':2
                                  'search_release'  'by':2 'piece':1
                                     'search_rest'  '08':5 'again':11 'country':4 'exotica':2 'ifs':15,17 'jazz':1 'jb':13 'katie':6 'melua':7 'oldies':3 'on':8 'pop':19 'prerock':12 'road':10 'songwriter':18 'the':9 'vocal':14,16
                                    'search_combo'  '08':13 'again':4A,19 'by':8C 'country':12 'exotica':10 'ifs':23,25 'jazz':9 'jb':21 'katie':5B,14 'melua':6B,15 'oldies':11 'on':1A,16 'piece':7C 'pop':27 'prerock':20 'road':3A,18 'songwriter':26 'the':2A,17 'vocal':22,24
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'pop', 'singer songwriter']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530644.5724237  (2021-05-09 05:24:04)
                             'size'  6752663