======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '169'
                                          'artist'  '101 Strings Orchestra'
                                     'text_people'  ''
                                         'release'  'The Glory of Christmas'
                                           'title'  'While the Shepherds Watched Their Flocks'
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                                      'lastfmtags'  "['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']"
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '8'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-easy listening'
                                             'bpm'  '144.1'
                                             'key'  '8A'
                                        'acoustid'  '53b944d1-3b9b-42ca-990d-03b58cb52ec9'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '144.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-easy listening'
'TDOR' (Original release time)                      '1958'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'While the Shepherds Watched Their Flocks'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               '101 Strings Orchestra'
'TPE2' (Band/orchestra/accompaniment)               '101 Strings Orchestra'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Alshire Records'
'TRCK' (Track number/Position in set)               '2/8'
'TSO2'                                              '101 Strings'
'TSOP' (Performer sort order)                       '101 Strings'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.4 (http://www.mp3dev.org/)'
'TXXX:Acoustid Id'                                  '53b944d1-3b9b-42ca-990d-03b58cb52ec9'
'TXXX:Artists'                                      '101 Strings Orchestra'
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'TXXX:MusicBrainz Album Id'                         '0da1dba5-1250-4943-ab7e-d61da3390e1f'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5c176092-cb4d-4e05-806b-1e9414f2b28c'
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'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
'TXXX:originalyear'                                 '1958'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.595975'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The 101 Strings Orchestra/1958 - The Glory of Christmas/02 - While The Shepherds Watch Their Flocks.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  169
                                           'genre'  electronic-generic or radio-easy listening
                                        'filesize'  2709861
                                           'mtime'  1621705520
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1958 02 electronic generic radio easy listening
                                      'tag_artist'  101 Strings Orchestra
                                     'tag_release'  The Glory of Christmas
                                       'tag_title'  While the Shepherds Watched Their Flocks
                                             'bpm'  144.1
                                    'search_title'  'flocks':6 'shepherds':3 'the':2 'their':5 'watched':4 'while':1
                                   'search_artist'  '101':1 'orchestra':3 'strings':2
                                  'search_release'  'christmas':4 'glory':2 'of':3 'the':1
                                     'search_rest'  '1958':5 'country':4 'easy':9 'electronic':6 'exotica':2 'generic':7 'jazz':1 'listening':10 'oldies':3 'radio':8
                                    'search_combo'  '101':7B '1958':18 'christmas':13C 'country':17 'easy':22 'electronic':19 'exotica':15 'flocks':6A 'generic':20 'glory':11C 'jazz':14 'listening':23 'of':12C 'oldies':16 'orchestra':9B 'radio':21 'shepherds':3A 'strings':8B 'the':2A,10C 'their':5A 'watched':4A 'while':1A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-2', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['instrumental', 'edhits', 'myhits', 'classical', 'easy listening']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705519.6941836  (2021-05-22 19:45:19)
                             'size'  2709861