======================== unified (from filesystem) ========================
                                         'bitrate'  '233.116'
                                        'duration'  '156'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  "Good Rockin' Tonight: The Great Original 'Hayride' Recordings"
                                           'title'  "That's Alright Mama"
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '14'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '105'
                                             'key'  '11B'
                                        'acoustid'  '26c4333c-8a30-4cc8-9d32-fd8017d0f6bb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '105'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         "That's Alright Mama"
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TPE2' (Band/orchestra/accompaniment)               'Elvis Presley'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Prism Leisure'
'TRCK' (Track number/Position in set)               '1/14'
'TSO2'                                              'Presley, Elvis'
'TSOP' (Performer sort order)                       'Presley, Elvis'
'TXXX:Acoustid Id'                                  '26c4333c-8a30-4cc8-9d32-fd8017d0f6bb'
'TXXX:Artists'                                      'Elvis Presley'
'TXXX:BARCODE'                                      '5014293614627'
'TXXX:CATALOGNUMBER'                                'PLATCD 146'
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'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '01809552-4f87-45b0-afff-2c6f0730a3be'
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'TXXX:MusicBrainz Release Track Id'                 '02d324a3-a952-3c1a-bab2-cea063314892'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:originalyear'                                 '1996'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.64 dB'
'TXXX:replaygain_track_peak'                        '0.707843'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'13f5c0f5-8809-4b35-91a8-16eefe509519')

========================== row from database ==========================
                                              'id'  1511941
                                            'path'  /data/Music/Bulk/00poprockelectronic/Elvis Presley/Elvis Presley - 01 - That_s Alright Mama.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  156
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  4585901
                                           'mtime'  1622659496
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 01 That_s rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  Good Rockin' Tonight: The Great Original 'Hayride' Recordings
                                       'tag_title'  That's Alright Mama
                                             'bpm'  105.0
                                    'search_title'  'alright':4 'mama':5 's':2 'that':1 'thats':3
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  'good':1 'great':7 'hayride':9,10 'original':8 'recordings':11 'rockin':2,3 'the':6 'tonight':4,5
                                     'search_rest'  '00poprockelectronic':1 'early':6 'pop':5 'rock':4 'rocknroll':7 's':3 'that':2
                                    'search_combo'  '00poprockelectronic':19 'alright':4A 'early':24 'elvis':6B 'good':8C 'great':14C 'hayride':16C,17C 'mama':5A 'original':15C 'pop':23 'presley':7B 'recordings':18C 'rock':22 'rockin':9C,10C 'rocknroll':25 's':2A,21 'that':1A,20 'thats':3A 'the':13C 'tonight':11C,12C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659495.5922136  (2021-06-02 20:44:55)
                             'size'  4585901