======================== unified (from filesystem) ========================
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                                        'duration'  '187'
                                          'artist'  'Harry James & His Orchestra'
                                     'text_people'  ''
                                         'release'  "I've Heard That Song Before - The Hits of Harry James - Disc 1"
                                           'title'  "He's 1-A in the Army and He's A-1 in My Heart"
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                                      'lastfmtags'  "['instrumental', 'jazz', 'big band', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-big band'
                                             'bpm'  '94.327'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '94.327'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-big band'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         "He's 1-A in the Army and He's A-1 in My Heart"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry James & His Orchestra'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'jazz', 'big band', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.560824'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/I_ve Heard That Song Before - The Hits of Harry James - Disc 1/10 - He_s 1-A in the Army and He_s A-1 in My Heart.mp3
                                         'working'  None
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                                    'duration_sec'  187
                                           'genre'  prerock-jb-jazz-o-big band
                                        'filesize'  7496431
                                           'mtime'  1620530163
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                                      'tag_artist'  Harry James & His Orchestra
                                     'tag_release'  I've Heard That Song Before - The Hits of Harry James - Disc 1
                                       'tag_title'  He's 1-A in the Army and He's A-1 in My Heart
                                             'bpm'  94.327
                                    'search_title'  '1':4,12 '1a':6 'a':5,11 'a1':13 'and':10 'army':9 'he':1 'heart':15 'hes':3 'in':7 'my':14 's':2 'the':8
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                                     'search_rest'  'band':12 'big':11 'country':4 'exotica':2 'he':7 'i':5 'jazz':1 'jb':10 'oldies':3 'prerock':9 's':8 've':6
                                    'search_combo'  '1':4A,12A,33C '1a':6A 'a':5A,11A 'a1':13A 'and':10A 'army':9A 'band':45 'before':26C 'big':44 'country':37 'disc':32C 'exotica':35 'harry':16B,30C 'he':1A,40 'heard':23C 'heart':15A 'hes':3A 'his':18B 'hits':28C 'i':20C,38 'in':7A 'ive':22C 'james':17B,31C 'jazz':34 'jb':43 'my':14A 'of':29C 'oldies':36 'orchestra':19B 'prerock':42 's':2A,41 'song':25C 'that':24C 'the':8A,27C 've':21C,39
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'jazz', 'big band', 'swing']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620530162.8778703  (2021-05-09 05:16:02)
                             'size'  7496431